Review on ⚡ Rechargeable Langkou Particulate Temperature Detector by David Reyes

Bought to monitor air quality because my son often sneezes even in our house. It's been a bad season for allergy sufferers anyway, but we want to find out what the indoor air quality is like. Fortunately, the carbon dioxide levels are within the normal range. With regard to the fine dust content in the air, it should also be noted that particles with 1, 2.5 and 10 microns are in the normal range. There was no way to verify the accuracy of the particulate matter measurement, but I know carbon dioxide definitely goes up when you breathe it in and then goes down when you put it next to plants, so I can say it's working.