https://techcrunch.com/2020/03/26/its-still-easy-to-find-coronavirus-mask-ads-on-facebook/

Ads for face masks are still appearing on Facebook, Instagram and Google, according to a review of the platforms carried out by the Tech Transparency Project (TTP). This despite pledges by the platforms that they would stamp out ads which seek to profit from the coronavirus pandemic.

Facebook said on March 6 that it would temporarily ban commerce listings and advertisements for medical face masks, in an effort to combat price-gouging and misinformation during the COVID-19 crisis.