Air Cleaner Certification Information for Manufacturers
CARB adopted a regulation to limit the amount of ozone emitted from indoor air cleaning devices in order to protect public health. All air cleaning devices sold in the California, including over the internet, must meet the regulation requirements.
According to the regulation, an “indoor air cleaning device” is an energy-using product whose stated function is to reduce the concentration of airborne pollutants, including but not limited to allergens, microbes (e.g., bacteria, fungi, viruses, and other microorganisms), dusts, particles, smoke, fumes, gases or vapors, and odorous chemicals, from the air inside an enclosed space. Such devices include, but are not necessarily limited to, portable devices of any size intended for cleaning the air nearest a person, in a room of any size, in a whole house or building, or in a motor vehicle; and stand-alone devices designed to be attached to a wall, ceiling, post, or other indoor surface.
The regulation states that portable air cleaners sold in California must be CARB certified for electrical safety and low ozone emissions. In-duct electronic air cleaning devices installed in the ductwork of HVAC systems may also generate ozone, but are not currently subject to the regulation. Manufacturers and distributors of air cleaning devices are responsible for becoming familiar with the regulation and meeting its requirements, including those related to notification, labeling and advertising. Below you will find materials and information needed to comply with the regulation. CARB is currently in the process of amending the regulation and information about these changes can be found at Air Cleaner Regulation 2019. The amended regulation has not gone into effect, although manufacturers can contact CARB staff for updated information at firstname.lastname@example.org.
Companies selling uncertified air cleaning devices in California are subject to enforcement action by CARB, including fines.
Air Cleaner Certification Process
Full instructions for completing the application are found below, but there are 3 basic steps to getting an air cleaner certified by CARB:
- Request an application and application number from CARB at email@example.com
- Have the device tested for electrical safety and, if it's an electronic air cleaning device, for ozone emissions by an NRTL
- Submit the signed application and supporting documents to CARB via email at firstname.lastname@example.org. Include the complete electrical safety report, Authorization to Mark (ATM), owner's manual, Directory Listing, electrical schematic and exploded parts diagram labeled in English with the brand name and model number listed
Please review the instructions carefully before filling out the application form. Once your application is complete, CARB has 30 days to finish the initial review.
If you have any questions regarding the application process, contact email@example.com or (916) 324-9233.
- Supplemental Form (Use this form when the electrical safety test and ozone test are conducted by different NRTLs)
- FAQs about complying with the regulation
Testing Laboratories for Ozone Emissions Test (UL867)
Contact information for laboratories approved by CARB to test electronic air cleaning devices for ozone emissions is shown below. Please contact them directly to request testing. The laboratory will need an application form with an application number, and with the manufacturer and model information completed by the manufacturer or their representative, in order to conduct the testing of the device. Mechanical air cleaners that only use filtration must be tested for electrical safety, which can be conducted by most Nationally Recognized Testing Laboratories (NRTLs). Electronic air cleaners must be tested for ozone by the UL 867 standard, as well as electrical safety.
UL LLC - Underwriters Laboratories Inc.
Mystery Ma, Business Development Manager
UL Verification Services (Guangzhou) Co., Ltd.
1F, 2F, 3F & 5F, Building A1, Nansha Science and Technology Innovation Center, No. 25
South Huanshi Avenue, Nansha District, Guangzhou 511458, China
Intertek Testing Services
James Diescher, Operations Manager
Technical Lead - Safety
Michael Hudon, Engineer
3933 U.S. Route 11
Cortland, NY 13045
Intertek UL 867 testing information
Information on the ozone emissions test method
- Section 37, UL Standard 867*
*In the most current version of UL 867, Section 37 is updated to Section 40, which incorporates all the CRDs.
Additional Requirements to Meet Prior to Selling Air Cleaners in California
Instructions on Labeling and Marking Air Cleaning Devices
Certified devices must be labeled in accordance with Section 94806 of the regulation. Labels for non-medical air cleaning devices must be "at least 1 inch by 2 inches in size, easily readable, and shall state 'This air cleaner complies with the federal ozone emissions limit. ARB certified' in bold type whose uppercase letters are not less than 3 mm high." Labels for medical devices shall be in compliance with federal law, including Section 801.415 of Title 21 of the Code of Federal Regulations and shall also state "ARB certified."
A sample label for non-medical devices that meets the regulation requirements is provided at the link below.
All air cleaners must also bear the listing mark or certification mark for ANSI/UL Standard 867, 507, or other appropriate standard as specified in the regulation, consistent with the requirements of the appropriate authorizing Nationally Recognized Testing Laboratory.
Instructions for Notifying Distributors, Retailers and Sellers
All manufacturers selling or distributing air cleaners in California are required to notify all of their distributors, retailers, and sellers of those device(s) about the regulation, and to provide a copy of the regulation to them. This includes manufacturers of uncertified devices. Notification about the regulation must be updated periodically as new distributors, retailers, and sellers are added. Detailed instructions for submittal of the documentation, an updated Sample Notification Letter, a cover form that should accompany the documentation submittal, and a link to the Final Regulation Order (to accompany notification letters) are provided below.
- Instructions for Documentation of Notification Requirement
- Cover/Transmittal Form for Documentation of Notification Materials
- Updated Sample Notification Letter
- Final Regulation
Instructions for Online Retailers of Uncertified Devices
Any indoor air cleaning device for non-industrial use that is advertised or sold via the Internet, but has not been certified by CARB, must display the following advisory in a prominent place on the primary advertising page: "Does not meet California requirements: Cannot be shipped to California". This information should be provided to the consumer prior to entering their purchase information. It is the responsibility of the manufacturer, retailer or distributor to block sales of uncertified air cleaners to people living in California.