The AirGradient One meets
the Qingping Air Monitor 2
Wirecutter's top pick, with the clearest dashboard and a gas-appliance NOx sensor. We tested it head-to-head against the Qingping Air Monitor 2 across 6 key dimensions.
AirGradient One
“Wirecutter's top pick, with the clearest dashboard and a gas-appliance NOx sensor”
Qingping Air Monitor 2
“Reads as accurately as pricier monitors for around $150”
Head-to-Head Breakdown
Strengths & Weaknesses
AirGradient One
- Named best overall by Wirecutter and a top performer at Consumer Reports
- Tracks three particle sizes plus CO2, VOCs, and NOx for gas-stove homes
- Physical display and web dashboard Wirecutter rated the best in the category
- At $230 and USB-C powered, it stays plugged in rather than portable
- Sold direct from the maker rather than on Amazon
- The depth of data is more than a casual user needs, per Wirecutter
Qingping Air Monitor 2
- Top performer at Consumer Reports and HouseFresh's best-for-most pick
- NDIR CO2 sensor plus PM2.5, PM10, and VOC coverage in one unit
- Rechargeable battery and a replaceable sensor module
- HouseFresh found the companion app can be buggy
- Live outdoor AQI is limited to certain US cities
- No radon or NOx sensing like the premium picks
The Verdict
Our Bottom Line
The AirGradient One is the monitor the most rigorous testers agreed on. Wirecutter named it the best home air quality monitor after years of hands-on work, and Consumer Reports ranked it a top performer, one of the models that flags unhealthy air in under 30 seconds of lab smoke testing. Two things set it apart. First, it reads three particle sizes alongside CO2, VOCs, and a NOx sensor, and that NOx reading matters in any home with a gas stove or furnace, a pollutant most rivals never touch. Second, Wirecutter called its physical display and web dashboard the best designed and most informative in the category, better than the pricier Airthings View Plus. It stays plugged in rather than portable, and the depth of data is more than a casual user needs, but for a clear, trustworthy read on what you are breathing, nothing else tested this well at both of the labs we trust most.
AirGradient One
The AirGradient One is the monitor the most rigorous testers agreed on. Wirecutter named it the best home air quality monitor after years of hands-on work, and Consumer Reports ranked it a top performer, one of the models that flags unhealthy air in under 30 seconds of lab smoke testing. Two things set it apart. First, it reads three particle sizes alongside CO2, VOCs, and a NOx sensor, and that NOx reading matters in any home with a gas stove or furnace, a pollutant most rivals never touch. Second, Wirecutter called its physical display and web dashboard the best designed and most informative in the category, better than the pricier Airthings View Plus. It stays plugged in rather than portable, and the depth of data is more than a casual user needs, but for a clear, trustworthy read on what you are breathing, nothing else tested this well at both of the labs we trust most.
- Anyone who wants the clearest, most informative dashboard
- Homes with a gas stove or furnace that need NOx tracking
- Buyers who trust Wirecutter and Consumer Reports consensus
Qingping Air Monitor 2
The Qingping Air Monitor 2 delivers most of what a $300 monitor does for around $150. Consumer Reports rated it a top performer, and HouseFresh reported that in independent AQMD testing it reads as accurately as devices costing far more, helped by a proper NDIR CO2 sensor. It covers PM2.5, PM10, CO2, VOCs, temperature, humidity, and even ambient noise on a color touchscreen, a fuller sensor list than most monitors near its price. A built-in rechargeable battery lets you carry it around for spot checks, and the sensor module is replaceable, so it does not become e-waste in a few years. The app can be buggy and live outdoor readings are limited to certain cities, but for accuracy per dollar, this is the one to buy.
- Shoppers who want near-flagship accuracy without the flagship price
- People who want CO2 plus particles and VOCs in one unit
- Anyone who likes carrying a monitor room to room for spot checks