1.This product is an air quality detector, which is used to quickly and reliably detect the air quality of the current environment; It is widely used and is an indispensable tool for every professional. 2.Why do I need to buy an air quality tester? 3.Air quality has a direct impact on our health. Long-term exposure to polluted air may cause various respiratory diseases such as asthma, bronchitis, and even lung cancer. Air quality tester can monitor air pollutants in real time, such as PM2.5, P M10, formaldehyde, TVOC, etc. 4.It allows us to understand the current air quality so that we can take timely measures, such as wearing masks, closing doors and windows, etc., to avoid pollutants from harming our health. 5.This product is an air quality detector that can be used to reliably detect formaldehyde, HCHO and TVOC in the current ambient air; it protects the health of every one of our families., Manufacturer: EDEDE