There are many devices out there on amazon, since formaldehyde inside your house == bad is a chinese health meme where air meters will measure it specifically.

There are many devices out there on amazon, since formaldehyde inside your house == bad is a chinese health meme where air meters will measure it specifically. https://www.amazon.com/Air-Pollution-Formaldehyde-Detector-Temperature/dp/B078ZS8RVL/ref=sr_1_9?keywords=formaldehyde&qid=1557356477&s=gateway&sr=8-9 https://www.amazon.com/Air-Pollution-Formaldehyde-Detector-T...