It was shared by various accounts including one claiming to be a “Natural Medicine Database” with 70,000 followers and a version translated into Russian (not labelled false) by an account promoting a range of conspiracy theories.
Much of the the anti-mask content comes in the form of memes making fun of them, which are widely shared on social media.
One viral example compares the hazmat-style clothing worn by virologists working in a lab to protect against viruses with the face coverings that members of the public might be making at home.
“Don’t worry, your bandana works too,” it says.
The earliest version appeared on a Q-Anon – a pro-Trump conspiracy theory – account and has also been posted by Donald Trump Jr generating more than 100,000 likes and shares.