Fil-Fresh 16 in 1 Air Quality Monitor Indoor, CO2 Monitor Air Quality Tester with 9 Display+7 AQI Alerts for CO2, TVOC, HCHO, PM2.5, PM1.0, PM10, Time, Temperature, Humidity Meter, 7" Large Display

$75.99

Amazon.com

INKBIRDPLUS 6-in-1 Indoor Air Quality Monitor, Detects CO2, PM2.5, PM10, AQI, Temperature and Humidity for Rooms, Cellars, Grow Tents, Offices, etc. (PTH-9A)

$68.99

Amazon.com

6-in-1 Air Quality Monitor, Smart Indoor CO2 Detector & HCHO TVOC AQI Tester, Accurate Temperature Humidity Meter with Color Display for Home, Bedroom, Office, Car, USB Powered

$49.99

Amazon.com

Professional Indoor Air Quality Monitor with AQI Alerts, Portable Real-Time Detector for Home, Car, Plants & Pet

$139.99

Amazon.com

16 in 1 Air Quality Monitor Indoor 7" Display 9 AQI+7 AQI Alerts,Portable Air Quality Tester CO2, TVOC, PM2.5 PM1.0 PM10, HCHO Temperature Humidity Temp & Time Air Quality Meter for Home

$69.99

Amazon.com

Professional Indoor Air Quality Monitor with AQI Alerts, Portable Real-Time Detector for Home, Car, Plants & Pet (Pearl White)

$69.99

Amazon.com

Air Quality Monitor CF-60PP WiFi Air Quality Detector CO2 Monitor PM1.0 PM2.5 PM10 HCHO TVOC Pollen AQI Tester for Indoor/Outdoor TFT Color Display Rechargeable Custom Alarm CSV Report Download

$159.99

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AirKnight Premium Indoor Air Quality Monitor Indoor & Air Quality Sensor. VOC Detector, CO2 Monitor, Formaldehyde Detector HCHO, AQI, PM2.5, PM10 Temperature Humidity Air AQI CO2 Meter (White)

$89.99

Amazon.com

Coiliiot Air Quality Monitor Indoor – CO2 Detector, VOC Meter and AQI Tester Tracks TVOC, HCHO, PM2.5 & PM10 with Temperature & Humidity Sensor for Home Office (Black)

$74.99

Amazon.com