PurpleAir Blog

  • How Does Wildfire Smoke Travel?

    The bigger the wildfire, the more likely the smoke will travel farther from the source. Why? The smoke from a wildfire typically gets shot up into the sky vertically, after which it expands outward into a plume. These monstrous clouds of smoke are called pyrocumulonimbus clouds. For this reason, the air quality in the region directly surrounding a wildfire may not be as bad as in the downwind areas. After shooting high up into the atmosphere, sometimes even as far as the stratosphere, the smoke moves outward horizontally, landing on top of cities.
  • Protect Your Family from Wildfire Smoke: Create a Clean Room

    Pollution can enter your home in many ways and for various reasons. Wildfire smoke is one of the most recurrent reasons in areas where wildfires are frequent. To prevent you and your family from breathing polluted air, creating a “clean room” is a common practice.
  • Wildfire Update – July 2022

    The NOAA reports that wildfires have burned over 3.9 million acres from January to June 2022, the second-highest amount on record. July continues the trend, from the blaze across Yosemite National Park in California to others hitting the USA. We review some of the headlines from July that have had the most significant impact on the environment and local air quality.
  • Indoor vs Outdoor Air Quality – What’s the Difference?

    Since air is fluid, it can flow in and out of our homes, sometimes bringing pollutants with it. Thanks to the PurpleAir indoor and outdoor sensors, you can quickly compare air quality around you to make the best decision for your home or office. 
  • Summer is Here – Be Prepared

    Summer’s the time for sun, time off, and playing outside. Summer is also the season when temperatures rise, drought conditions increase, and large wildfires make the news. Especially across Western US states, the warmer weather can open the landscape to wildfire risks. Make sure you know what’s happening with your air quality – at home and beyond. 


  • Wildfire Season: Emergency Action Plan Checklist

    Every year the world experiences wildfires, and it is always a good idea to have a clear action plan. Be prepared in case unexpected situations arise by following this checklist.
  • 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.