UL Solutions Issues Warning Over Rooftop Fans Bearing Unauthorized UL Certification Marks

NORTHBROOK, Ill. - Dec. 19, 2025 - UL Solutions (NYSE: ULS), a global leader in applied safety science, has issued a public notice regarding two models of rooftop centrifugal extractor fans, which are used in food trucks and trailers, manufactured by US AirSupply Corp. Inc. under the brand name AirSupply, citing the use of unauthorized UL Certification Marks.

The affected products - models E-DUC1010-1 and E-DUC1212-1 - have not been evaluated by UL Solutions to the appropriate safety standards. UL Solutions recommends that these products be immediately removed from service, as it is unknown if they comply with any safety requirements.

The extractor fans, marketed as part of the "Low Profile Compact Series for Food Trucks & Trailers," are labeled as being made according to UL Standards and display an unauthorized UL Certification Mark, but UL Solutions confirms that no such certification has been granted.

The products are known to be sold online and in retail stores in the United States, including through the manufacturer's website, www.airsupplycorp.com.

Product Details:

Model E-DUC1010-1:

• Motor Voltage: 110 VAC
• Running Current: 3.5 - 4.0 A
• Overload Protection: 10 A

Model E-DUC1212-1

• Motor Voltage: 110 VAC
• Running Current: 7.0 - 7.5 A
• Overload Protection: 10 A

"When safety certification marks are falsely applied to products like rooftop extractor fans, it creates a false sense of safety and can lead to hazardous outcomes," said Alessio Dellanoce, vice president and general manager of the Appliances, HVAC and Lighting group at UL Solutions. "The unauthorized use of the UL Mark on these rooftop extractor fans is deeply concerning, and the affected products should be immediately removed from service."

Due to rising energy costs and increasing awareness of the effects of climate change, emerging ventilation product trends include innovations that are both smart and sustainable. To capitalize on these trends, ventilation product manufacturers need to know their products meet all relevant standards for safety, efficiency, security and sustainability before they get to market. UL Solutions' ventilation testing and certification services help manufacturers anticipate and avoid vulnerabilities in their ventilation system products.

About UL Solutions
A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers' product innovation and business growth. The UL Mark serves as a recognized symbol of trust in our customers' products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.

UL Solutions public notice reference number: 25PN-11

Media contacts:
Tyler Khan
UL Solutions
[email protected]
T: +1 (847) 664.2139

Steven Brewster
UL Solutions
[email protected]
T: +1 (847) 664.8425

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