The AHAM Certification Program for Portable Electric Room Air Cleaners

The Portable Electric Room Air Cleaner Certification Program is sponsored by the Association of Home Appliance Manufacturers (AHAM). The Program provides assurance to the public, through presence of the AHAM Certification Seal, that manufacturers' claimed ratings of Clean Air Delivery Rate (CADR) have been independently verified in accordance with ANSI/AHAM Standard AC-1, "Method for Measuring Performance of Portable Household Electric Room Air Cleaners”.

Under the terms of the Certification Program, manufacturers certify CADR of a portable electric room air cleaner. An independent laboratory verifies the performance of random samples taken from factory, warehouse and dealer showrooms.

Participation in the Certification Program is voluntary and is open to all manufacturers and firms who market private brand models. As program sponsor and verifying authority, AHAM retains a laboratory (Intertek ETL SEMKO) to administer testing of sample units and to verify manufacturers' claimed ratings.

Program Scope
ANSI/AHAM Standard AC-1 applies to portable electric room air cleaners that remove particulate matter from the air and that have CADR ratings within the ranges noted below:
    Tobacco Smoke 10 to 450 CADR
    Dust 10 to 400 CADR
    Pollen 25 to 450 CADR

Room Size Calculation
Room size is calculated using the following formula:
    Room Square Feet = Smoke CADR value x 1.55
    Room Square Meters = Smoke CADR value x 0.144
This formula is based on the CADR requirement to remove 80% of smoke particles, assuming one room air exchange per hour. Further information on this calculation can be obtained from AHAM.

The Seal
The AHAM Portable Electric Room Air Cleaner Certification Seal is a mark issued by AHAM to all manufacturers and private brand sellers of portable electric room air cleaners who are Licensees in the Certification Program. Under terms of the Certification Program, the manufacturer certifies that the CADR of all portable electric room air cleaners bearing this mark are determined and accurately stated in accordance with the requirements of ANSI/AHAM Standard AC-1. The Certification Seal is required on all packaging of certified portable electric room air cleaners. Additionally, Program terms require that manufacturers display only CADR values for tobacco smoke, dust and pollen within the certification seal. The seal cannot imply certification of any other feature or performance factor.

AHAM’s Directory of Certified Portable Electric Room Air Cleaners lists current program models for each participating Licensee in the Program. The directory is published semi-annually (January and July) with quarterly electronic publications (January, April, July, October) available at .

Inquiries and Comments
Comments or questions on AHAM’s Portable Electric Room Air Cleaner Certification Program should be directed to AHAM or visit our website at .

Ozone Emission Information for Portable Electric Room Air Cleaners

An ozone emission limit of 50 ppb is recognized by the U.S. Food & Drug Administration for medical products and is referred to in U.S. EPA guidelines for indoor air quality 1. Underwriters Laboratories Safety Standard 867 recognizes 50 ppb as a maximum ozone emission limit. Participants may voluntarily provide certified ozone emissions data according to UL Standard 867, Section 37, which is not subject to separate verification testing by AHAM. Additional information on ozone emission is available from individual manufacturers.
1 This limit is also recognized by California Law AB2276-2006 for emissions from portable air cleaners sold in the state. There is no implication that ozone listing in this directory complies with the California ozone certification program for air cleaners.