Questions and answers about the GUPPYFRIEND washing machine filter

In your camper van, in the bathroom, in the kitchen, when cleaning your windows, or when washing your bike or car. The GUPPYFRIEND Sink Filter is our all-purpose filter for any situation.

If you still occasionally use a plastic sponge for washing dishes: GUPPYFRIEND Sink Filter. For microfiber cloths and the dust they collect: GUPPYFRIEND Sink Filter. For a quick hand wash of your yoga pants or fleece sweater: GUPPYFRIEND Sink Filter. For the water collected in your condenser dryer: GUPPYFRIEND Sink Filter. And so on and so forth.

It is best to pick it up with a soft brush, such as the GUPPYFRIEND cleaning brush, and dispose of it in the residual waste. Please do not vacuum the GUPPYFRIEND sink filter or rinse it under running water. So, even if it is a bit more convenient to leave the filter out: Make it your daily ritual! Microplastics belong in the trash can, not in the ocean!

That doesn't matter at all. Because it works just fine at an angle, too.

When used as intended, the durability of the sink filter is unlimited. 

Please note that temperatures above 90 °C, acids, sharp edges, and high weight loads can destroy the filter surface. The filter should not be used for paints, oils, and solids.

Tests by the German Textile Research Centre verify the effective operation of the sink filter in private households and offices. Click here for the test results.  

A small proportion of household dust also consists of particularly small, so-called nano-particles. These, too, can be partially retained by the GUPPYFRIEND sink filter because some of these particles, which are invisible to the human eye, adhere to larger fibers and can be filtered out along with them. 

Liquid and dissolved polymers, i.e., plastic in cleaning agents, cannot be retained. The solution: use cleaners without microplastics and without dissolved, liquid, or gel-like polymers.

For the GUPPYFRIEND sink filter, we use an untreated, silicone-free, extra-fine laboratory filter mesh made of polyester, which is characterized by high alkali resistance. Since it is a monofilament, the filter mesh itself does not release any microplastics into the environment. The frame is made from 100% recycled material from the Dual System.

The filter fabric of the GUPPYFRIEND sink filter is manufactured in Italy. The components for it come from Switzerland, Germany, and Italy. The material for the frame is 100% sourced from recycling through the Dual System. We produce components and materials for GUPPYFRIEND products sold in other regions as locally as possible.

The functionality of the fabric specifically manufactured for filters has been extensively tested and scientifically confirmed. It is used in the filtration of food products such as drinking water, as well as in technical industry laboratories, e.g., for particle separation.  

The challenge for us was to define the appropriate mesh size for this high-tech fabric. Our goal is to filter as effectively as possible without having to wait a long time for the liquids being filtered to "trickle through."  

The German Textile Research Center North-West (DTNW) supports us in analyzing particles and creating statistics on the materials commonly found in private and commercial environments. In the DTNW's microscopic analysis, based on dust samples from various households, it was determined that the filter material we use is very well suited for filtering household dust out of cleaning and rinse water. Click here for the test result. To verify our findings, we regularly supplement our test series with additional dust samples. 

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