New York, NY – August 15, 2023 – Following a BBB National Programs National Advertising Division (NAD) challenge, brought by competitor Dyson, Inc., Vesync Co., Ltd. voluntarily discontinued certain claims for its HEPA air purifiers.

Dyson challenged claims that Vesync’s Levoit EverestAir Smart True HEPA, Core 300, and Core 300S True HEPA air purifiers and their respective replacement filters have passed HEPA standards and argued that such claims conveyed other misleading messages.

In response to the challenge, Vesync asserted its belief in the efficacy of its products and stated that the challenged claims were made based on pre-existing independent third-party data. Vesync informed NAD that it was in the process of updating its testing data, however, and that for reasons unrelated to Dyson’s challenge, it had elected to permanently discontinue the challenged claims. Therefore, NAD did not review the claims on their merits.

In its advertiser statement, Vesync thanked NAD for its attention to the matter and stated that it “does not concede that there was anything misleading about the claims but has decided to voluntarily discontinue the claims.”

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About BBB National Programs: BBB National Programs, a non-profit organization, is the home of U.S. independent industry self-regulation, currently operating more than a dozen globally recognized programs that have been helping enhance consumer trust in business for more than 50 years. These programs provide third-party accountability and dispute resolution services that address existing and emerging industry issues, create a fairer playing field for businesses, and a better experience for consumers. BBB National Programs continues to evolve its work and grow its impact by providing business guidance and fostering best practices in arenas such as advertising, child-and-teen-directed marketing, data privacy, dispute resolution, automobile warranty, technology, and emerging areas. To learn more, visit

About the National Advertising Division: The National Advertising Division (NAD) of BBB National Programs provides independent self-regulation and dispute resolution services, guiding the truthfulness of advertising across the U.S. NAD reviews national advertising in all media and its decisions set consistent standards for advertising truth and accuracy, delivering meaningful protection to consumers and leveling the playing field for business.

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Name: Jennie Rosenberg
Email: [email protected]
Job Title: Media Relations

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