News

  • DIY Project: Box fan air purifier

    During wildfire season, ventilating our home can be a challenge. Opening the doors and windows could mean the opposite; instead of letting in fresh, clean air, we can be letting in the air with a lot of particle pollution accumulation. Here we will teach you how to make a box fan air purifier with a DIY project.
  • High levels of PM2.5 in the air

    When the AQI (Air Quality Index) in your area shows extremely high levels of PM2.5 or your PurpleAir sensor shows a health alert, it means that pollution is hazardous at these levels. Consider these steps to reduce your exposure.
  • Community Scientists

    Are you curious about the air quality around you? Do you want to learn more and contribute to your community with your air quality projects? Join our ranks as a Community Scientist!
  • Hyper-local, real-time air quality map

    The air we breathe has direct consequences on our health. According to The NOAA, "Poor air quality is responsible for an estimated more than 100,000 premature deaths in the U.S each year". PurpleAir has designed a hyper-local, real-time air quality map that targets the need to measure and visualize air quality.
  • What is Particulate Matter (PM)?

    PM - which stands for particulate matter or particle pollution - is an intricate mixture of liquid droplets made up of acids (like nitrates and sulfates), ammonium, water, black carbon, organic chemicals, metals, soil material, and air-borne particles.
  • Wildfires

    A wildifire is an uncontrolled fire that burns in wildland vegetation such as forests, grasslands, and savannas, or in rural areas. They can exist in every continent or environment.