Indoor Air Quality Monitors Under $20
Multi-sensor air quality monitors for CO2, PM2.5, temperature, and humidity — all under $20 and handpicked for home use.
5 Products
Digital Air Quality Monitor 6-in-1 5-in-1 CO2 Meter CO TVOC HCHO PM2.5 Temperature Humidity Tester Home Carbon Dioxide Detector
$10.92$11.64-6%
BAAY MT07WT 6-In-1 Indoor Air Quality Monitor PM2.5 Household HCHO TVOC CO2 Temperature Humidity Portable Tester For Home Use Wh
$11.46$17.37Hot
Tuya WiFi 10-in-1 Air Quality Detector CO2 Monitor PM0.3 PM1.0 PM2.5 PM10 Formaldehyde Detector Temperature and Humidity Meter
$12.31$32.40Hot
57BE 9 in 1 Air Quality Monitor-Detector Tests HCHO TVOC PM2.5 PM10-CO-CO2-AQI Temperature Humidity Indoor Air Quality Tester
$17.88$37.24Hot
10in1 Air Quality Monitor with 2.8-inch Color Screen Indoor CO2 Formaldehyde Detector Accurate PM2.5 Temperature Humidity Tester
$17.84$39.65Hot