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3M Sues Amazon Merchant for Selling Fake N95 Masks at Exorbitant Prices

The merchant allegedly defrauded customers of $350,000. 3M says it's also partnered with Amazon to shut down fraudulent N95 mask dealers on the site.

 & Michael Kan Principal Reporter

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3M is suing an Amazon merchant for selling fake N95 masks under the company’s brand while also charging customers over 20 times the normal price. 

The masks were sold via dozens of seller accounts on Amazon.com for $23 to $28 when each N95 respirator usually costs about $1.50. However, customers who bought the products often said they were “ripped off,” receiving fewer masks than ordered, according to 3M’s lawsuit, which was filed on Monday.

The company is suing a California-based merchant named Mao Yu, who allegedly ran several companies to take in about $350,000 through the mask scheme. According to 3M, the masks were also counterfeit, damaged, or deficient in some way, rendering them less effective at protecting wearers’ from COVID-19.  

3M filed the lawsuit against the merchant in an effort to stop price-gouging of N95 masks during the pandemic. The company has also partnered with Amazon to identify and shut down fraudulent N95 mask dealers on the e-commerce site. 

“There is no place for counterfeiting or price gouging on Amazon and we’re proud to be working with 3M to hold these bad actors accountable,” Amazon VP Dharmesh Mehta said in a statement. 

Amazon has been battling price gouging since February as merchants tried to sell N95 masks, hand sanitizer, and disinfectant wipes at exorbitant prices. On Wednesday, the company told PCMag it has so far removed half a million offers and suspended 6,000 merchant accounts for price-gouging offenses. 

“In addition, Amazon has turned over to federal prosecutors and state attorneys general nationwide information about sellers we suspect have engaged in egregious price gouging of products related to the COVID-19 crisis,” the company wrote in a blog post last month urging Congress to pass a federal price gouging law. (Currently, only 36 states have specific regulations against price gouging during times of emergency.)

As for 3M, the company is encouraging customers to contact the company about any fraud or price gouging involving its brand or products. 

3M is suing Yu for damages on charges of trademark infringement, counterfeiting, false advertising, and for breaking California’s unfair competition law. “3M will donate any damages recovered to COVID-19-related nonprofit organizations,” the company said.

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Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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