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AHAM Finalizes Air Cleaner Standard to Measure Removal of Common Chemicals

WASHINGTON, D.C. (May 27, 2022) 
–  The Association of Home Appliance Manufacturers has finalized a standard for portable room air cleaners that will assess the effectiveness of air cleaners at removing common chemical gases and odors like those emitted from wildfires, building materials and certain household products such as cleaners and paints.

Ultimately, air cleaner models tested under the new standard, AHAM-AC-4-2022, will be issued a rating based on their ability to remove chemical gases. The rating for chemical gas removal will be added to AHAM’s Clean Air Delivery Rate (CADR), which is the most recognized way for consumers to compare the ability of air cleaners to remove pollutants in a given room size. The new rating will be known as  c-CADR.

The effort to develop AHAM-AC-4-2022 began three years ago, when AHAM and the Korean Air Cleaner Association (KACA) signed a Memorandum of Understanding to study how effective air cleaners were at removing gases and odors like those emitted from wildfires, building materials, common household products and cooking. The development of the standard was a joint effort between AHAM, KACA, industry experts, and several air cleaner manufacturers.

AHAM-AC-4-2022 is the second major air cleaner performance standard AHAM has released this year. In March, the association published AHAM-AC-5-2022, which measures the removal of microbiological pollutants like viruses, bacteria and mold. 

AHAM-AC-4-2022 is now available for purchase on AHAM’s website. AHAM will hold a webinar on June 15 to discuss the details of the standard.
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The Association of Home Appliance Manufacturers (AHAM) is the trade association representing manufacturers of major, portable and floor care home appliances and suppliers to the industry. AHAM is headquartered in Washington, D.C. and maintains an office in Ottawa. AHAM is the single voice providing the home appliance industry and its customers leadership, advocacy and a forum for action — developing and implementing credible solutions for public policy, standards and business decisions. You can visit AHAM’s web site at or follow us on Twitter @AHAM_Voice and @AHAM_Policy.