Air Quality Monitors
Best Indoor Air Quality Tester (2026): Our 5 Picks Ranked
As an Amazon Associate we earn from qualifying purchases. Specs below come from each product's Amazon listing; we do not test products in person.
The Airthings 2960 View Plus leads with radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure readings in one battery-powered monitor with an eInk screen and app. Together, the five picks cover radon, particle, gas, and AQI readings for indoor rooms.
Starting out? See the main guide: Best Air Quality Monitor
Top picks at a glance
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Best OverallAirthings 2960 View Plus9.8 View on Amazon -
Runner-UpAmazon Smart Air Quality Monitor9.8 View on Amazon -
Also GreatBREATHE Airmonitor Plus Gen 2 Indoor Air9.8 View on Amazon -
Also GreatLifeBasis Air Quality Monitor Indoor9.5 View on Amazon -
9.2 View on Amazon
Compare the specs
Ranked on measures pm2.5, measures co2, measures vocs, ndir co2 sensor, phone app control from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Measures PM2.5 | Measures CO2 | Measures VOCs | NDIR CO2 sensor | Phone app control | Weight | Warranty |
|---|---|---|---|---|---|---|---|
| 1. Airthings 2960 View Plus | Yes | Yes | Yes | — | Yes | — | 5-year |
| 2. Amazon Smart Air Quality Monitor | Yes | — | Yes | — | Yes | — | — |
| 3. BREATHE Airmonitor Plus Gen 2 Indoor Air | Yes | Yes | Yes | Yes | Yes | — | 2-year |
| 4. LifeBasis Air Quality Monitor Indoor | Yes | Yes | Yes | Yes | — | — | — |
| 5. Temtop Air Quality Monitor PM2.5 PM10 Particle | Yes | — | Yes | — | — | — | 1-year |
Airthings 2960 View Plus
It covers radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure in one battery-powered monitor with an app.
- Measures PM2.5
- Measures CO2
- Measures VOCs
- Phone app control
- 5-year warranty stated
Good for
- Rooms that need radon and PM2.5 readings
- Buyers who want a battery-powered monitor with an app
Skip it if
- You want a warranty longer than 5 years
- You want a plug-in monitor
It measures radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure, with WiFi and the Airthings app for readings and notifications. The battery-powered unit has a customizable eInk screen for cable-free placement, and 6 AA batteries and a USB C cable are included. Registration for the extended warranty covers 5 years.
Amazon Smart Air Quality Monitor
It tracks PM2.5, VOCs, carbon monoxide, humidity, and temperature with a color-coded LED and Alexa alerts.
- Measures PM2.5
- Measures VOCs
- Phone app control
Good for
- Rooms that need carbon monoxide and PM2.5 readings
- Buyers who want Alexa routines and phone notifications
Skip it if
- You need more than 5 measured factors
- You want a battery-powered monitor
It tracks PM2.5, VOCs, carbon monoxide, humidity, and temperature, with a color-coded LED for current air quality and detailed readings in the Alexa app. Notifications reach a phone or Echo devices when air quality drops, and routines can switch compatible Alexa devices such as air purifiers, dehumidifiers, and fans. Setup is plug-in through the Alexa app.
BREATHE Airmonitor Plus Gen 2 Indoor Air
It tracks CO2, PM1, PM2.5, PM10, TVOC, and formaldehyde with an NDIR sensor, a color display, and 90-day history.
- Measures PM2.5
- Measures CO2
- Measures VOCs
- NDIR CO2 sensor
- Phone app control
- 2-year warranty stated
Good for
- Rooms that need PM1, PM10, and formaldehyde readings
- Buyers who want 90-day history and data export
Skip it if
- You need more than 6 hours of portable use
- You want a warranty longer than 2 years
It tracks CO2, PM1, PM2.5, PM10, TVOC, and formaldehyde with an NDIR CO2 sensor, laser particle sensing, and a color display. The rechargeable design gives up to 6 hours of portable use and runs on USB-C power for continuous use.
LifeBasis Air Quality Monitor Indoor
It tracks 11 indexes, including AQI, CO2, PM2.5, TVOC, and formaldehyde, with visual and audible alerts.
- Measures PM2.5
- Measures CO2
- Measures VOCs
- NDIR CO2 sensor
Good for
- Rooms that need 11-index readings with visual and audible alerts
- Buyers who want an LCD screen with adjustable brightness
Skip it if
- You need more than 12 hours of continuous use
- You want a battery larger than 2500mAh
It tracks AQI, CO2, PM1.0, PM2.5, PM10, particles, formaldehyde, TVOC, temperature, and humidity with an NDIR infrared CO2 sensor and a laser particle sensor. The LCD screen shows each reading with a color reminder, and the icon color shifts across Good green, Moderate yellow, Poor orange, and Abnormal red. A 2500mAh battery with a Type-C charging port gives up to 11-12 hours of continuous use.
Temtop Air Quality Monitor PM2.5 PM10 Particle
It tracks PM2.5, PM10, formaldehyde, VOCs, humidity, temperature, and AQI with USB export and a 12-hour trend histogram.
- Measures PM2.5
- Measures VOCs
- 1-year warranty stated
Good for
- Rooms that need a 12-hour trend histogram
- Buyers who want USB data export without an app
Skip it if
- You need more than 8 hours of spot checks
- You want a warranty longer than 1 year
It tracks PM2.5, PM10, formaldehyde, VOCs, humidity, temperature, and AQI with a laser particle sensor and a Dart electrochemical formaldehyde sensor. A 12-hour trend histogram shows peaks, and USB logging exports all 7 parameters to Excel spreadsheets for renovation monitoring and long-term tracking. The battery gives 6-8 hours of spot checks, and the Type-C cable supports continuous monitoring.
How to choose
What to measure first
Start with the pollutants you want to watch: radon, carbon monoxide, PM2.5, VOCs, and formaldehyde each need their own sensor. The Airthings monitor covers radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure, while the Amazon monitor covers PM2.5, VOCs, carbon monoxide, humidity, and temperature. Match the sensors to the rooms you want to watch.
Apps, alerts, and history
The LifeBasis monitor uses visual and audible alerts with color grades from Good green to Abnormal red, and the Temtop monitor exports data over USB to Excel spreadsheets. Decide whether you want phone alerts, on-device alerts, or exported records before you pick.
Power and placement
Battery-powered monitors move room to room, while plug-in monitors run without charging: the Airthings monitor is battery-powered with a customizable eInk screen, the Airmonitor Plus Gen 2 monitor tracks CO2, PM1, PM2.5, PM10, TVOC and formaldehyde with an NDIR sensor and gives up to 6 hours of portable use, and the LifeBasis monitor gives up to 11-12 hours on a full charge. The Temtop monitor runs 6-8 hours of spot checks and connects over Type-C for continuous monitoring. The Amazon monitor plugs in for setup. Place the monitor where its power source reaches and its readings stay easy to check.
FAQ
Which monitors measure radon?
Only the Airthings 2960 View Plus measures radon, alongside PM2.5, CO2, VOCs, humidity, temperature, and air pressure.
Which monitors track formaldehyde?
The Airmonitor Plus Gen 2, LifeBasis, and Temtop monitors track formaldehyde, with the Airmonitor Plus Gen 2 monitor pairing it with TVOC and the Temtop monitor pairing it with AQI.
How long do the batteries last?
The Airmonitor Plus Gen 2 monitor gives up to 6 hours of portable use, the LifeBasis monitor gives up to 11-12 hours on a full charge, and the Temtop monitor gives 6-8 hours of spot checks.
Which monitors work with an app?
The Airthings monitor uses the Airthings app over Wi-Fi. The Amazon monitor uses the Alexa app. The Airmonitor Plus Gen 2 monitor uses its app over 2.4 GHz Wi-Fi.