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Home air quality monitors have limited capabilities and reliability, so if you’re concerned about the air quality inside your home, we recommend measuring the outdoor air first. This is because it is often determined by outdoor conditions. Indoor situation.
There’s no easier way to do this than with the Environmental Protection Agency’s AirNow mobile app, available for free on iOS and Android.
Searchable by zip code or place name and displayed on a map, AirNow’s air quality measurements are based on direct measurements from hundreds of monitors across the United States, providing real-time data as well as air quality forecasts. Masu.
The types of indoor air monitoring devices for homes evaluated for this guide typically measure only local airborne particle levels, and in some cases they also measure volatile organic compound levels (such as vapors from paints, cleaners, and adhesives). gas), so it provides less information by comparison. He rarely measures two potentially deadly gases: carbon monoxide and radon. Many smoke detectors also detect carbon monoxide. See our guide to smoke alarms for more information. EPA has created a guide to radon that includes state-by-state resources to find out if your area is at risk and how to get your home tested. And whether you’ve measured evidence of poor indoor air quality or just have a hunch, there are simple, consistently effective ways to make your air as clean as possible. Run an air purifier or upgrade your HVAC filter to capture airborne particles. Open windows on sunny days to vent volatile organic compounds.
Added CO2 (carbon dioxide) monitor recommendations for 2022. Researchers at the University of Colorado Boulder say carbon dioxide levels can be used as a proxy for coronavirus risk in crowded public indoor spaces because people exhale both carbon dioxide and, if sick, the virus in the same breath. I discovered that it is possible. And even in the absence of the virus, high levels of carbon dioxide can build up in both public spaces and homes from everyday activities, such as breathing as well as using gas stoves and water heaters. We reached out to researchers about using his CO2 monitors for air quality measurements, and for product recommendations and how to interpret and respond to that information when monitoring his CO2 at home. Together we came up with some advice about what to do.
We recommend using the AirNow app as a first step, as indoor air quality issues can typically occur in outdoor situations. AirNow is not the only app of this kind, but many other air quality apps simply repackage data collected by EPA offices, often with clarifications, new information, and interface improvements. I found that it was not added. Compared to AirNow, some apps have a harder time determining your location, while others use an incomplete network of monitoring stations to collect data. AirNow provides the easiest way to get information and make sense of it. It also doesn’t display ads all the time, unlike other apps we’ve tested.
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Carbon dioxide (CO2) concentrations in indoor spaces are typically higher than in natural outdoor air and can rise to levels that impair cognitive function. The main reason is the combustion of natural gas and simply the emission of CO2. If you want to know how much CO2 is in the air in your home or office, Aranet 4 is for you. Readings are easy to read on the screen, as are alerts if levels get too high. Its app also sends alerts, works on both iOS and Android, and adds 7-day trend monitoring to help identify patterns of high CO2. And to help offset the cost, high-quality sensors should last up to seven years.
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We understand that many people reading this guide actually want to take measurements indoors. For that, we recommend the Temtop M10 Air Quality Monitor, with some caveats. Many of the air quality monitors reviewed over two years of research for this guide have too many reliable reports of defective sensors or connectivity issues to strongly recommend them. However, the M10 stands out for its simplicity, with a bright display that shows particle measurements (which are confirmed to be accurate), small size, and lack of Wi-Fi connectivity (in this case, good ). It’s also reasonably priced, so you can keep your expectations relatively low. There are good reasons to approach it that way. Like other cheap air quality monitors, its VOC measurements are questionable, and some buyers have reported that their M10s broke or malfunctioned within weeks of their arrival.