How much carbon (by weight) is in each filter?

Often, the weight of carbon in a filter is considered when evaluating an air purifier’s ability to remove smoke-related pollutants from the air. While the presence of activated carbon is important to neutralizing odor, the efficiency and airflow of the air purifier should also be considered. This is because smoke from tobacco, wildfires and other sources contains fine particles, harmful chemicals and VOCs (Volatile Organic Compounds), as well as annoying odors.

Blueair suggests evaluating an air purifier’s performance in removing smoke related pollutants by considering:

  • The removal of the harmful fine particles in smoke, evaluated by the AHAM Verifide Clean Air Delivery Rate. The higher the number the better.
  • The removal of chemicals and VOCs. Blueair tests gas removal according to the methods described in the Chinese standard GB/T18801-2015.
  • The removal of odors can be evaluated by the rate of removal of odor indicators such as ammonia, acetaldehyde and acetic acid. Blueair tests deodorization according to the methods described in the Chinese standard GB/T18801-2015 and the Japanese standard JEM 1467-2015.