What is the verification procedure?
Pollupatches consist of a special bioplastic, which has large pores into which pollutants such as formaldehyde can penetrate. Inside the gel is a bio-indicator that is sensitive to formaldehyde. This reaction leads to the degradation of the green color and a color change towards yellow, orange and red. This color change is easily visible to the naked eye.
Are the patches dangerous?
No. The patches consist only of substances that are harmless to health. During development, care was taken to ensure that no hazardous substances, poisons or aggressive chemicals were used.
However, the patch is not suitable for consumption and we advise keeping the patches out of the reach of animals and children. Also, make sure you discard any patches back after use.
How reliable are the results?
Each test kit includes a positive and a negative control. This way you can be sure that the test kit works and that your results are meaningful. Each batch is extensively tested before it is released. Pollu patches are a guide that should help you to get an overview of possible sources of pollution quickly and easily.
The patch is a good guide, if you are looking for verifiable evidence, we would be happy to advise you on the selection of special sensors and experts.
If you want to find out more about the sensitivity and reproducibility of the test methodology, you can request the data sheet here.