No. The installation of Dropvital domestic water systems requires the specialist knowledge of a plumber. Among other things, water pressure, pipe routing and the installation diagram must be correctly taken into account during installation.

We therefore recommend that you always have the soft-home installed by a qualified specialist. This ensures safe installation and professional commissioning, and you will receive direct instruction from the installer.

The domestic water systems may only be installed directly on the pressure-reduced cold water on the domestic water main line.

It is important that a fixed installation sequence is followed:

The domestic water systems are installed downstream of the water meter, the pressure reducer and an existing sediment or backwash filter.

This ensures that all domestic water is treated under stable conditions.

No. active-home is an optional addition to Dropvital's domestic water systems and has no influence on the quality of the limescale protection itself.

In active-home, the water is intensively circulated at around 100,000 revolutions per minute using a patented rotating nozzle. This rotational movement creates a combination of aligned water molecules, which is described in specialist literature as a coherence domain. As a result, the water is present in a structured, hexagonal arrangement, also known as H3O2.

This physical circulation increases the inner surface area of the water. As a result, the water exhibits altered conductivity and dissolution characteristics and has a pronounced dynamic structure.

An additional plus point is the sensory change in the water after refinement. Many users describe the taste as lighter and fresher. The movement also allows the water to mix better with the surrounding air after it has been discharged.

The active-home is maintenance-free and comes with a 20-year guarantee. As an optional extension, it is an interesting addition for users who value additional physical water treatment.

The soft-home was tested in an accredited test laboratory in accordance with DVGW test standard W512. A limescale protection effect of 94 % was measured and awarded the top mark of 1. The test was carried out by an independent institute in accordance with DVGW specifications.

Compared to other systems available on the market, this shows a clear difference in effectiveness. Classic salt-based softening systems typically achieve limescale protection values of around 85-90%, depending on the mode of operation. Catalytic systems such as CoralForce are around 60 %, while magnetizers and simple swirlers achieve values between 30 and 50 %, depending on the application. These systems change the limescale structure but do not remove the limescale from the water.

The soft-home works without salt, without electricity, without waste water and without hidden service costs. The system is complemented by a 180-day money-back guarantee, a 20-year manufacturer's warranty and Swiss-made production. This combination of proven effectiveness, sustainability and durability makes the soft-home a particularly effective solution against limescale in the home.

It should also be noted that salt-based ion exchangers are generally only recommended in practice from a water hardness of around 25 °fH or 12 °dH. The reason for this is the addition of sodium to the drinking water, which increases accordingly as the softening capacity increases.

For this reason, salt systems often only soften part of the water and then mix it back in with untreated tap water to limit the sodium content. This means that not all of the domestic water is treated equally.

The soft-home, on the other hand, works without salt and without ion exchange. All the water in the household is treated without adding sodium and without blending water. As a result, the water composition remains unchanged, while at the same time a high level of tested limescale protection is achieved.

In the soft-home system, calcium and magnesium ions in the water bind to malic acid. This creates stable organic complexes, in particular calcium malate and magnesium malate. This complexation fundamentally changes the chemical state of the minerals.

By binding to malic acid, the minerals are no longer present as freely available calcium carbonate. As a result, they can no longer crystallize into classic lime (CaCO₃) and accumulate on pipes, fittings or surfaces.

The minerals remain in the water, but are chemically bound.

Under normal operating and household conditions, these organically bound minerals are not released from the bond, meaning that new limescale is no longer formed. This also applies when the water is heated, as the calcium ions are no longer present in the free form required for limescale formation.

The decisive difference to physical conversion systems is that the lime is not merely changed in its crystal form, but is chemically bound. The soft-home therefore does not work via seed crystals, magnetization or turbulence, but via a targeted organic complexation of the lime-forming ions.

Important:

The minerals are not removed, but permanently bound. The water composition is retained, while limescale deposits are reliably prevented.

Classic salt-based water softeners, on the other hand, work via ion exchange. Calcium and magnesium ions are completely removed from the water and replaced by sodium ions, regardless of their function. This means that it is not technically possible to selectively differentiate between lime-forming ions and mineral components in salt systems.

Yes, the malic acid used in soft-home is a natural, extensively researched substance whose properties and safety have been assessed by regulators for many years. Malic acid (E296) is approved as a food additive in Germany and the European Union.

Malic acid is approved for use in foodstuffs in accordance with EU Regulation No. 1333/2008 and German food law (LFGB). This approval is based on extensive toxicological and safety-related assessments by the relevant expert committees.

Evaluation by European and international expert committees

The EFSA (European Food Safety Authority) has re-evaluated malic acid and its salts as part of a re-evaluation (EFSA Journal 2017;15(3):4727). The main results are as follows:

• No safety-relevant concerns with the evaluated application quantities
• No need to set an ADI (Acceptable Daily Intake)
• No evidence of genotoxic effects
• Complete metabolism via established biochemical metabolic pathways

The JECFA (Joint FAO/WHO Expert Committee on Food Additives) also comes to similar conclusions in its toxicological assessment of malic acid. The WHO Food Additives Series 16 states:

• No toxicologically relevant effects
• No ADI restriction required
• Evaluation for use in food

These assessments relate to the material safety of malic acid and are used for regulatory classification.

International classification

In the United States, malic acid has GRAS (Generally Recognized As Safe) status according to the FDA. It is approved there for numerous applications, including in beverages with significantly higher concentrations than those found in technical water treatment applications.

Registration under chemical law

In addition, malic acid is registered with the European Chemicals Agency (ECHA) in accordance with the REACH Regulation (EC) No. 1907/2006. This registration confirms the permitted use of malic acid in technical applications, including water treatment.

The ECHA evaluation regulates the registration, evaluation and authorization of substances under chemical law and does not constitute a medical or health impact statement.

Click here for the official link:

https://echa.europa.eu/de/substance-information/-/substanceinfo/100.009.560

Classification in the context of Dropvital

Dropvital uses malic acid exclusively in the context of technical, physico-chemical water treatment. The aforementioned assessments and studies prove the regulatory permissibility and material safety of malic acid, but not the health or medical effects of the treated water.

Summary

Malic acid is an internationally evaluated, approved and registered substance with comprehensive regulatory protection by EFSA, JECFA, FDA and ECHA. It is used in soft-home applications as part of a technical water treatment on the basis of a clearly defined and legally secured framework.

Sources: 

EFSA Food Panel

https://www.efsa.europa.eu/en/call/call-data-re-evaluation-malic-acid-and-malates-e-296-e-350-352-food-additives?utm_source=chatgpt.com

JECFA (WHO/FAO)

https://apps.who.int/food-additives-contaminants-jecfa-database/Home/Chemical/1453

FDA

https://www.hfpappexternal.fda.gov/scripts/fdcc/index.cfm?set=FoodSubstances&id=MALICACIDL&sort=Sortterm_ID&order=ASC&startrow=1&type=basic&search=malic%20acid 

In contrast to classic salt-based water softeners, in which calcium and magnesium ions are replaced by sodium ions, the soft-home works without ion exchange and without salt. The natural minerals remain completely contained in the water.

Instead, calcium and magnesium ions are organically complexed by malic acid. This creates stable mineral-malate complexes, in particular calcium malate and magnesium malate. These organically bound minerals are up to 100 times more water-soluble than classic calcium carbonate (CaCO₃) and are therefore no longer available for the formation of limescale deposits.

This complexation means that the minerals remain dissolved in the water, but can no longer settle as hard limescale on pipes, fittings or appliances. The practical result is that the water behaves like soft water, although the mineral composition is retained.

Even when heated, for example in hot water mode or during boiling, the minerals remain predominantly in the organically bound form. This effectively prevents the reaction with carbonate ions necessary for limescale formation.

Classification of the measured values

Conventional test strips or simple hardness measurements continue to show the original water hardness, as they only measure the total amount of dissolved mineral ions. They do not differentiate between freely available hardness constituents and organically complexed minerals. Accordingly, the TDS value (Total Dissolved Solids) remains unchanged.

The decisive factor is not the measured value from cheap test strips that are only designed to react to mineral ions, but the chemical behavior of the minerals in the water:

• The minerals are bound, highly water-soluble and lime-inactive - limescale deposits are prevented without removing minerals or adding sodium.
• Magnesium malate and calcium malate are formed by binding to the malic acid of the minerals.
• No magnesium citrate, no magnesium sulphate and no magnesium oxide.

It's worth googling for yourself😉

In salt-based softening systems, the water is blended with untreated tap water for a reason. Ion exchange replaces calcium and magnesium ions with sodium ions. Softening to zero hardness is not permitted, as the sodium content in the drinking water would rise sharply.

For this reason, salt systems have to mix the softened water back in to limit the sodium content. The addition of sodium is also considered corrosive and can damage pipes, fittings and household appliances in the long term.

The soft-home works without salt and without ion exchange. No sodium is added to the water. Therefore, no addition of raw water is required.

The bypass is set so that no mixed water is added.

The water flows 100% through the Soft-Home system.

The advantage:

In contrast to salt systems, the entire domestic water is treated evenly - without sodium, without blending and without different water qualities at individual taps. The limescale protection is therefore consistent throughout the entire system.

Suppliers of water softeners often compare the addition of sodium with the salt content of a packet of chips. However, this overlooks the fact that people do not eat chips every day and that this comparison is misleading. It is similar to the argument for throwing PET bottles into lakes on the grounds that microplastics are already present there anyway.

It is important to understand that although the salt used in salt-based softening systems is originally a natural product, it is chemically processed and denatured for technical use.

Commercially available regenerating salt consists of at least 94 % sodium chloride (NaCl). This salt is deliberately made inedible for use in water softening systems. In addition to natural additives such as clay and calcium or magnesium sulphates, anti-caking agents are usually added to the salt, often iron or potassium ferricyanide, to prevent clumping and ensure the technical function.

Accordingly, regenerated salt is not table salt, sea salt or Himalayan salt, but a technical salt that is expressly not intended for human consumption.

This is also made clear by the hazard and safety warnings on the packaging, among other things:

• H412 - Harmful to aquatic life with long lasting effects
• P102 - Keep out of the reach of children
• P315 / P101 - Get medical advice and have hazard warning label at hand
• P410 - Protect from sunlight

These labels refer to the product regenerating salt itself and are part of the classification under chemical law. They make it clear that it is a technical operating material that is used in water softening systems and whose handling and disposal is regulated.

It must also be taken into account that salt-based softening systems produce saline regeneration wastewater, which enters the sewage system and can contribute to increased salt and chloride pollution. It is precisely these effects that have been the subject of environmental studies for years.

Brief summary

The regenerating salt used in salt systems is not a foodstuff, but a chemically treated technical operating material with clear hazard labeling. In addition to technical side effects, its use also has environmental implications - a key difference to salt-free limescale protection systems such as Dropvital.

https://www.bmluk.gv.at/dam/jcr:250fe6a2-18af-4b2a-99bb-a25d6ff87f3d/Chlorid%20Studie.pdf

https://blog.uni-koblenz-landau.de/gewaesserversalzung-gefahr-fuer-mensch-und-umwelt/

https://www.quarks.de/umwelt/drei-gruende-warum-du-besser-auf-streusalz-verzichtest/

https://www.bund-sh.de/stadtnatur/winterdienst/

In the US, there is no uniform nationwide regulation against salt-based water softeners, but several states, regions and municipalities have adopted strict restrictions or bans - mainly for environmental and water management reasons.

1. saline wastewater (brine) and environmental pollution

Salt-based water softeners work via ion exchange and generate salty wastewater (brine) during each regeneration cycle, which is discharged into the sewage system and from there into natural bodies of water and groundwater. This brine contains high concentrations of chloride and sodium, which can accumulate in bodies of water.

• In regions with sensitive freshwater ecosystems, increased salinity can worsen the living conditions for aquatic organisms and plants.

2. complications in wastewater treatment and reuse

Many municipalities are pursuing programs to reuse municipal wastewater, for example for irrigation or groundwater recharge. Salt-contaminated wastewater is problematic for such systems because the existing wastewater treatment plants cannot remove enough salt.

As a result, water that should actually be reused is no longer suitable for this purpose or has to be treated at great expense.

3. local regulations and legal bases

Based on these environmental and water quality concerns, various authorities have issued legal bases and ordinances that regulate the use of classic, salt-based softening systems:

• In Texas, a state-wide ban on salt-based water softeners was introduced back in 2001; subsequent adjustments only allow them under certain conditions.
• In California, the California Water Code allows regional water agencies to impose local bans or restrictions on such facilities, particularly in regions that do not meet salinity/chloride loading requirements.
• Other states such as Connecticut, Michigan, Minnesota and Wisconsin have similar restrictions, in some cases coupled with bans on brine discharge into sewage treatment systems or programs to promote salt-free technologies.

In some local communities, water softening systems have even been banned completely and systems already installed have been dismantled; inspections and enforcement measures are being actively pursued in some areas.

4. increased regulatory control in response to studies and practical effects

Studies have shown that increasing salt and chloride concentrations in water bodies and wastewater systems cause serious ecological and technical problems:

• Aquatic species are sensitive to saline water; studies indicate negative effects even at relatively low salt concentrations.
• Costs and effort for wastewater treatment plants and infrastructure increase because salt cannot simply be removed.

Conclusion

The restrictions and bans on salt-based softening systems in parts of the USA are not based on health issues or medical arguments, but on water management, ecological and wastewater engineering reasons:

• Brine input pollutes water bodies and ecosystems.
• Salt-contaminated wastewater hinders water reuse and treatment processes.
• Regulatory authorities have used local powers to restrict or ban systems in order to achieve environmental goals and water quality targets.

Salt-free technologies or alternative water treatment concepts are therefore increasingly being used in the affected regions in order to avoid the environmental impact of saline wastewater.

Sources: 

https://www.solucionesice.com/de/gibt-es-ein-verbot-fuer-salzwasserenthaerter/?utm

https://www.lifesourcewater.com/blog/water-softeners-banned-by-law.php?utm

https://aquasureusa.com/blogs/water-guide/water-softener-ban?srsltid=AfmBOorif1GjsmkIUOxfOi73MbKaLLGhD8MZGjWlfJ8lIYpk7uHxcIo7&utm

https://hydroflow-usa.com/blog/commercial-blogs/why-are-water-softeners-being-banned/?utm

No. The soft-home does not change the pH value of the water.

The water treatment takes place without ion exchange and without chemical pH shifting. The natural pH value of the source water remains unchanged.

For hygienic reasons, we recommend changing the filter after 12 months at the latest.

The actual maintenance interval may vary depending on the size of the house, water hardness, water consumption, pipe network and usage profile. On this basis, we will inform you individually of the optimum replacement time.

The soft-home guarantees a term of 12 months, unless otherwise agreed in writing.

The replacement filter for the soft-home costs EUR 399.

On request, maintenance can be carried out by one of our service installers. The service call costs an additional EUR 200.

In contrast to salt-based water softeners, where the warranty often only remains valid if the manufacturer carries out regular servicing, the Dropvital warranty remains valid regardless of servicing.

The soft-home comes with a 20-year manufacturer's warranty.

In general, it is important to understand: If a supplier says that it filters pesticides, for example, then this statement is theoretically true - depending on the pore size of the filter. With classic activated carbon filters, this is typically a maximum of 0.1 micrometers.

Pollutants with a particle size below this pore size cannot be physically retained. In practice, this means that not all dissolved substances are effectively removed. Many suppliers keep this general and do not publish any specific information on pore size. Insist on transparent proof.

Conventional activated carbon filters work in the range of around 0.1 micrometers.

In independent laboratory tests by the international testing institute SGS, Dropvital has proven that nano-soft-home achieves an effective filter performance of up to 0.002 micrometers.

The decisive difference lies in the structure of the filter material. The design of the nano-soft-home ensures that retained substances are not released back into the water. With classic activated carbon filters, channels can form in the filter bed over the course of use, which reduces the filter performance.

Nano-soft-home is designed for a service life of up to 12 months and is therefore replaced annually.

Yes, nano-soft-home filters over 99 % of short-chain PFAS & TFA from the water - proven in a Swiss laboratory.

Filtration device and test method

• Filtration device: Nano-soft-home
• Test carried out in the Swiss laboratory in Zurich.
• Sampling and analysis period: 05.11.2024 - 25.11.2024
• Method: LC-MS/MS (Liquid Chromatography - Mass Spectrometry)

Results

• Trifluoroacetate (TFA)
  Before: 0.738 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoropropanoic acid
  Before: 0.383 µg/l
  After: Not detectable (reduction: 100 %)
• Trifluoromethanesulfonic acid (TFMSA)
  Before: 0.394 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoroethanesulfonic acid
  Before: 0.399 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoropropane sulfonic acid
  Before: 0.371 µg/l
  After: Not detectable (reduction: 100 %)
  

Conclusion

The test results underline the excellent effectiveness of Dropvital in the filtration of PFAS. While nano-soft-drink showed impressive reductions of up to 100 % in several categories, nano-soft-home achieved complete removal (100 %) in all tested substances.

The deliberate decision not to test long-chain PFAS is based on sound scientific findings that these substances generally already bind to surfaces or materials and can therefore be retained in upstream processes.

The results confirm the high quality and reliability of these filtration devices for use in water treatment.

The complete laboratory report can be made available on request.

The descaling in nano-soft-home is based on the same active principle as in soft-home. Malic acid is used in both systems, which chemically binds the limescale-forming minerals. It is not a matter of turbulence or magnetization, but of genuine descaling, proven in the German DVGW laboratory and awarded the top grade 1.

The difference lies in the amount of malic acid used:

The nano-soft-home cartridge contains around 550 g of malic acid, while the soft cartridge works with around 1 kg of malic acid.

Due to this different amount of active ingredient, the nano-soft-home cartridge achieves a limescale protection rate of around 80 %, while the soft-home cartridge achieves a limescale protection rate of over 94 %.

No. With nano-soft-home, the entire domestic water is treated directly - it is not necessary to add raw water.

The bypass is set so that 100% of the water flows through the system. This ensures that every tap in the house benefits equally from limescale protection.

Nano-soft-home works without electricity, without waste water and without additional regeneration cycles. There is no blending, as no dilution or correction of the water is necessary.

All the water is treated completely and evenly - efficiently, constantly and without side flows.

No. Nano-soft-home does not generate waste water and does not require electricity.

The system works purely physico-chemically and does not require regeneration cycles or rinsing processes.

No. Nano-soft-home is not a conventional activated carbon block filter, as is usually available on the market.

Classic activated carbon filters are produced by extrusion or compression molding. In this process, granulated or powdered activated carbon is pressed into a block with binding agents (e.g. synthetic resins or polymer adhesives). This construction method inevitably leads to a certain pressure loss, a limited inner surface area and an uneven pore structure.

Nano-soft-home works in a fundamentally different way.

Our carbon structure is built up in a wet spinning process on fibre-based carrier materials (e.g. rayon), then carbonized, activated and processed into a highly structured membrane. This process enables:

• an extremely high specific internal surface area (m²/g)
• a predominant formation of micropores ≤ 2 nanometers
• a homogeneous pore distribution
• Maximum adsorption density with minimum material usage

Conventional activated carbon filters, on the other hand, are predominantly based on meso- and macropores (10-50 nanometers and ≥ 50 nanometers respectively), which allow flow but have a significantly lower selective adsorption performance.

Sputtering technology - the decisive difference

Another technological difference lies in the sputtering technology used by Dropvital.

This involves the precise application of functional layers at the nanoscale in order to optimize the adsorption and binding properties in a targeted manner. This process originally comes from the high-tech industry and enables controlled surface modification at an atomic level.

The result:

• Targeted pollutant binding
• Stable adsorption structure
• No material abrasion
• No channel formation
• No relevant pressure loss in the system

Nano-soft-home therefore works with high filtration efficiency and stable flow behavior at the same time.

Proof of filter performance

The filter performance of nano-soft-home has been tested and confirmed in independent laboratory tests by SGS. The test reports document significant filter performance under standardized conditions for known pollutants up to complete filtering of PFAS and TFA.

The full test reports are available on request.

Nano-soft-home is a combination of house filter and limescale protection system and is integrated directly into your home's main cold water pipe.

It is important that a fixed installation sequence is followed:

Nano-soft-home is installed downstream of the water meter, the pressure reducer and an existing sediment or backwash filter.

This ensures that all domestic water is treated under stable conditions.

The recommended replacement period is 6 to a maximum of 12 months for hygienic reasons. Earlier replacement within this period may be necessary if the water flow is noticeably reduced. This is not a defect in the filter, but an indication of increased contamination by fine particles in the untreated water.

The actual maintenance interval may vary depending on the size of the house, water hardness, water consumption, pipe network and other external influences. On this basis, we will inform you individually of the optimum replacement time.

Dropvital guarantees a term of 12 months, unless otherwise agreed in writing.

A nano-soft-home replacement filter costs EUR 499.

For an extra charge of EUR 200, one of our service installers will be happy to change the filter for you.

Important information. There are no additional costs for you. Neither electricity nor waste water nor other maintenance contracts or hidden costs. 

No. Nano-soft-home does not change the pH value of the water.

Filtration takes place without any chemical pH shift. The natural pH value of the source water remains unchanged.

The carbon structure used in nano-soft-home is built up in a wet spinning process on fibre-based carrier materials such as rayon, then carbonized, activated and processed into a highly structured membrane.

This process enables us to achieve an extremely high internal surface area (m²/g) compared to conventional activated carbon filters. The cartridges are predominantly based on micropores with a diameter of ≤ 2 nanometers.

Conventional activated carbon filters, on the other hand, mainly work with mesopores and macropores (10-50 nanometers and ≥ 50 nanometers respectively), which are significantly larger.

In other words:

Nano-soft-home filters down to 0.002 micrometers, while conventional activated carbon filters are typically around 0.1 micrometers.

In general, it is important to understand: If a supplier says that it filters pesticides, for example, then this statement is theoretically true - depending on the pore size of the filter. With classic activated carbon filters, this is typically a maximum of 0.1 micrometers.

Pollutants with a particle size below this pore size cannot be physically retained. In practice, this means that not all dissolved substances are effectively removed. Many suppliers keep this general and do not publish any specific information on pore size. Insist on transparent proof.

Conventional activated carbon filters work in the range of around 0.1 micrometers.

In independent laboratory tests by the international testing institute SGS, Dropvital has proven that nano-home achieves an effective filter performance of up to 0.002 micrometers.

The decisive difference lies in the structure of the filter material. The design of the nano-home ensures that retained substances are not released back into the water. With classic activated carbon filters, channels can form in the filter bed over the course of use, which reduces the filter performance.

Nano-home is designed for a service life of up to 12 months and is therefore replaced annually.

Yes, nano-home filters over 99 % of short-chain PFAS & TFA from the water - proven in a Swiss laboratory.

Filtration device and test method

• Filtration device: nano-home
• Test carried out in the Swiss laboratory in Zurich.
• Sampling and analysis period: 05.11.2024 - 25.11.2024
• Method: LC-MS/MS (Liquid Chromatography - Mass Spectrometry)

Results

• Trifluoroacetate (TFA)
  Before: 0.738 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoropropanoic acid
  Before: 0.383 µg/l
  After: Not detectable (reduction: 100 %)
• Trifluoromethanesulfonic acid (TFMSA)
  Before: 0.394 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoroethanesulfonic acid
  Before: 0.399 µg/l
  After: Not detectable (reduction: 100 %)
• Perfluoropropane sulfonic acid
  Before: 0.371 µg/l
  After: Not detectable (reduction: 100 %)

Conclusion

The test results underline the excellent effectiveness of Dropvital in the filtration of PFAS. While nano-soft-drink showed impressive reductions of up to 100 % in several categories, nano-home achieved complete removal (100 %) in all tested substances.

The deliberate decision not to test long-chain PFAS is based on sound scientific findings that these substances generally already bind to surfaces or materials and can therefore be retained in upstream processes.

The results confirm the high quality and reliability of these filtration devices for use in water treatment.

The complete laboratory report can be made available on request.

No. The nano-home does not generate waste water and does not require electricity.

The system works purely physico-chemically and does not require regeneration cycles or rinsing processes.

No. The nano-home is not a conventional activated carbon block filter, as is usually available on the market.

Classic activated carbon filters are produced by extrusion or compression molding. In this process, granulated or powdered activated carbon is pressed into a block with binding agents (e.g. synthetic resins or polymer adhesives). This construction method inevitably leads to a certain pressure loss, a limited inner surface area and an uneven pore structure.

The nano-home works in a fundamentally different way.

Our carbon structure is built up in a wet spinning process on fibre-based carrier materials (e.g. rayon), then carbonized, activated and processed into a highly structured membrane. This process enables:

• an extremely high specific internal surface area (m²/g)
• a predominant formation of micropores ≤ 2 nanometers
• a homogeneous pore distribution
• Maximum adsorption density with minimum material usage

Conventional activated carbon filters, on the other hand, are predominantly based on meso- and macropores (10-50 nanometers and ≥ 50 nanometers respectively), which allow flow but have a significantly lower selective adsorption performance.

Sputtering technology - the decisive difference

Another technological difference lies in the sputtering technology used by Dropvital.

Functional layers are precisely applied at the nanoscale in order to specifically optimize the adsorption and binding properties. This process originally comes from the high-tech industry and enables controlled surface modification at an atomic level.

The result:

• Targeted pollutant binding
• Stable adsorption structure
• No material abrasion
• No channel formation
• No relevant pressure loss in the system

The nano-home therefore works with high filtration efficiency and stable flow behavior at the same time.

Proof of filter performance

The filter performance of the nano-home has been tested and confirmed in independent laboratory tests by SGS. The test reports document significant filter performance under standardized conditions for known pollutants, including complete filtering of PFAS and TFA.

The full test reports are available on request.

The nano-home is a combination of house filter and limescale protection system and is integrated directly into your home's main cold water pipe.

It is important that a fixed installation sequence is followed:

The nano-home is installed downstream of the water meter, the pressure reducer and an existing sediment or backwash filter.

This ensures that all domestic water is treated under stable conditions.

The recommended replacement period is 6 to a maximum of 12 months for hygienic reasons. Earlier replacement within this period may be necessary if the water flow is noticeably reduced. This is not a defect in the filter, but an indication of increased contamination by fine particles in the untreated water.

The actual maintenance interval may vary depending on the size of the house, water hardness, water consumption, pipe network and other external influences. On this basis, we will inform you individually of the optimum replacement time.

Dropvital guarantees a term of 12 months, unless otherwise agreed in writing.

A nano-home replacement filter costs EUR 499.

For an extra charge of EUR 200, one of our service installers will be happy to change the filter for you.

Important information. There are no additional costs for you. Neither electricity nor waste water nor other maintenance contracts or hidden costs.

The carbon structure used in nano-home is built up in a wet spinning process on fibre-based carrier materials such as rayon, then carbonized, activated and processed into a highly structured membrane.

This process enables us to achieve an extremely high internal surface area (m²/g) compared to conventional activated carbon filters. The cartridges are predominantly based on micropores with a diameter of ≤ 2 nanometers.

Conventional activated carbon filters, on the other hand, mainly work with mesopores and macropores (10-50 nanometers and ≥ 50 nanometers respectively), which are significantly larger.

In other words:

Nano-home filters down to 0.002 micrometers, while conventional activated carbon filters are typically around 0.1 micrometers.

No. Unlike the nano-soft-home or the soft-home, no malic acid is integrated into the nano-home. The nano-home is designed exclusively for the filtration of pollutants, but not for descaling purposes.