See:

Booming Face Mask Business in U.S. Creating Instant Millionaires Using Government Funds to Buy Masks from China

Apparently the same thing happened in Germany, and now they reportedly have 800 million face masks that are beyond their expiration date that need to be disposed of.

Berlin to incinerate 800 million expired Corona masks

Four German federal states have burned a total of over 17 million expired Corona masks. They were bought with taxpayer money. The government wants to burn 800 million masks in total.

by Free West Media

BERLIN This is according to a survey of all the states published by German daily Welt. Thus, 6,1 million masks were destroyed in Baden-Württemberg, 5,5 million in Saxony, five million in North Rhine-Westphalia and 656 000 in Mecklenburg-Western Pomerania.