Review on 🌬️ BIAOLING Accurate Formaldehyde Multifunctional Recording: Say Goodbye to Indoor Air Pollutants! by Ken Hamdan

This product resembles a motion detector pretending to be a facial recognition system. Long story short, I put some perfume on a t-shirt and left it in the same room. He switched to red code mode on all channels. I could forgive the VOC measurement, but showing skyrocketing CO and CO2 levels due to light aroma shows how much you can believe it. Of course it is sensitive, but against what and in what combinations? As a motion detector it can be used in controlled situations (greenhouse?) to look for relative daily changes. I don't think it provides meaningful individual measurements of the claimed gases. You will probably need multi-thousandth chromatography for this. I didn't open it to look at its components, but I checked the DART sensors. They also do not advertise "general air quality” as an app for their sensors. Yes, breathalyzer. On the other hand, after carefully considering the nonsensical readings, I decided to buy more houseplants. Sorry for the harsh criticism, but I hate being misled.