Air quality monitor can detect formaldehyde, PM2.5, CO2, TVOC, temperature and humidity. It is an integration type air quality monitor, which helps users know the air quality status constantly.
PM2.5 detection
Dust sensor
Dust sensor detects the amount of floating fine dust or condensate, which is also called PM2.5 sensor.
Sound reminder
Buzzer
Buzzer can make sound remind in purifier.