A trial date has been set in a $1 billion defamation case against Elsevier that alleges the company published what plaintiffs say was a manipulated study about an air purifying technology over objections from peer reviewers. The case has already cost Elsevier a $10,000 sanction from a judge.

Global Plasma Solutions (GPS), which makes air quality products, sued Elsevier in 2022 after the publisher declined to retract a 2021 paper in Building and Environment about GPS’ needlepoint bipolar ionization technology, which it heavily marketed during the COVID-19 pandemic as an air purifier. The complaint claims Elsevier is responsible for the authors’ alleged omission of data and misleading conclusions in the paper that fueled "massive" financial losses for the company, its lawyers claim. Elsevier knew the paper "failed peer review" under its "own standards," but moved forward with the article despite this knowledge, according to GPS, which now goes by GPS Air. 
 

Source https://retractionwatch.com/2026/08/21/defamation-lawsuit-elsevier-retraction-gps-air/

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