The nano-shower is a compact shower solution designed to reduce limescale buildup and selected contaminants in the water.

It does not fundamentally alter the minerals in the water, but rather reduces their tendency to form stubborn deposits on surfaces such as glass, faucets, or shower walls. At the same time, it filters out the most common and well-known contaminants—such as microplastics, PFAS and TFAS, chlorine, odor-causing substances, pesticides, and hormones—from the water.

The result: less limescale buildup, easier cleaning, and a noticeably more pleasant shower experience.

No. The nano-shower is not a water softening system and does not remove calcium and magnesium from the water.

Minerals are intentionally retained. The focus is on reducing limescale buildup and minimizing hard deposits—but above all, on filtering out the most common contaminants. 

The nano-shower is designed to maintain a stable flow rate.

When installed correctly and with regular cartridge replacement, no noticeable loss of water pressure is to be expected.

The cartridge's lifespan depends on several factors, in particular:

• Water consumption
• Number of people in the household
• Water quality
• Chlorine content
• Water hardness

The higher the consumption and the more contaminated the water is, the faster the filter capacity is depleted.

Recommended replacement intervals:

• 1 person: up to 6 months
• 2 people: approx. 3–4 months
• Households with higher consumption: replace sooner

Especially in Germany and other EU countries with elevated chlorine levels in tap water, an earlier replacement may be advisable, as the cartridge is subjected to greater wear and tear there.

Technical note:

A noticeable drop in water pressure indicates that the cartridge has reached its maximum capacity and should be replaced.

The maximum filter capacity is up to 6,000 liters—depending on water quality.

Timely maintenance ensures that full filter performance and optimal effectiveness are maintained.

Why We Deliberately Recommend Conservative Replacement Intervals

We deliberately base our calculations on realistic average values per person. This ensures that filter performance remains consistently high and that you do not compromise on quality or protection.

Yes, tested at SGS, the world's largest testing laboratory. The test report can be shared upon request. 

What’s the difference between this and inexpensive shower filters from the hardware store?

Many simple shower filters use mineral-based fillers or purely mechanical inserts with no proven effectiveness.

The nano-shower is based on targeted filter and structural technology designed for specific reduction mechanisms. It is not a decorative attachment, but a technically advanced solution for sustainably improving water quality in the shower.

No. The nano-shower does not artificially alter the pH level.

Unlike ionizers or alkaline systems, the basic chemical structure of the water remains unchanged.

Yes. The nano-shower is installed directly between the faucet and the shower hose and can be removed at any time without leaving any residue.

No structural modifications are necessary.

The underlying technologies were tested under defined laboratory conditions. What matters is not a short-term visual test, but the long-term reduction of lime scale buildup under realistic conditions of use.

In general, it’s important to understand: When a supplier claims, for example, that it filters out pesticides, this statement is theoretically correct—depending on the pore size of the filter. For traditional activated carbon filters, this is typically a maximum of 0.1 micrometer.

Contaminants with particle sizes smaller than this pore size cannot be physically retained. In practice, this means that not all dissolved substances are effectively removed. Many suppliers remain vague on this point and do not publish specific details about pore size. Insist on transparent evidence.

Conventional activated carbon filters operate in the range of approximately 0.1 micrometer.

dropvital, on the other hand, has demonstrated in independent laboratory tests conducted by the international testing institute SGS that the nano-shower achieves effective filtration down to 0.002 micrometer.

The key difference lies in the structure of the filter material. With nano-shower, the design ensures that trapped substances are not released back into the water. With traditional activated carbon filters, channeling can develop in the filter bed over time, causing filter performance to decline.

nano-home is designed to last up to 12 months and is replaced annually.

Yes, the nano-shower filters out over 99% of short-chain PFAS and TFA from the water—as verified by a Swiss laboratory.

No. The nano-shower is not a conventional activated carbon block filter like those typically available on the market.

Traditional activated carbon filters are manufactured through extrusion or compression molding. In this process, granulated or powdered activated carbon is pressed into a block using binders (e.g., synthetic resins or polymer adhesives). This construction inevitably results in a certain degree of pressure loss, a limited internal surface area, and an uneven pore structure.

The nano-shower works fundamentally differently.

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

• an extremely high specific internal surface area (m²/g)
• a predominance of micropores ≤ 2 nanometers
• a homogeneous pore distribution
• maximum adsorption capacity with minimal material usage

Conventional activated carbon filters, on the other hand, are primarily based on mesopores and macropores (10–50 nanometers and ≥ 50 nanometers, respectively), which, while allowing for flow, exhibit significantly lower selective adsorption performance.

Sputtering Technology—The Key Difference

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

This process involves the precise deposition of functional layers at the nanoscale to specifically optimize adsorption and binding properties. This method originated in the high-tech industry and enables controlled surface modification at the atomic level.

The result:

• targeted pollutant binding
• stable adsorption structure
• no material abrasion
• no channel formation
• no significant pressure loss in the system

As a result, the nano-shower operates with high filtration efficiency while maintaining stable flow characteristics.

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

This process allows us to achieve an extremely high specific surface area (m²/g) compared to conventional activated carbon filters. The cartridges are composed primarily of micropores with a diameter of ≤ 2 nanometers.

Conventional activated carbon filters, on the other hand, primarily rely on mesopores and macropores (10–50 nanometers and ≥ 50 nanometers, respectively), which are significantly larger.

In other words:

The nano-shower filters down to 0.002 micrometers, while ordinary activated carbon filters typically filter down to about 0.1 micrometers.