Review on 📊 Formaldehyde Temperature Humidity Portable Chemical Pollution Tracker by William Stewart

Let me start by saying that I bought these after being diagnosed with a formaldehyde allergy. I had no idea how common formaldehyde exposure was until I had to deal with it. Every time my face and eyes started to react, I checked that monitor and of course the readings went up. For a while it puzzled me that the readings were sometimes outrageously high, but my skin was fine. At some point I realized this is what happens when people are drinking alcohol in the house. The sensor picks up aldehydes from the oxidation of alcohol, so you need to be aware of that. Overall I am very happy with the product and would definitely recommend it!