Not everyone who would like to wear a mask has the time, skills, patience, even just interest required to make one. However it is possible to purchase a variety of ready to wear online. This article links to some 35+ places offering them for sale. Really far more because some links, like for example Amazon Handmade and Etsy link to multiple sellers.
Anyhow the first on the list was, I think on the spendy side, but patience, there are links to more affordable shops too. It's never going to be inexpensive to get hands on a ready made mask if a person isn't able to get a donated one but I felt considering the money and time spent that goes into making them, some were fairly reasonable.
Also some retailers are donating so many masks to charity for each one sold. Other sellers could probably use monetary contributions to purchase supplies allowing even more to be sold at affordable prices or even donated to charitable organizations to be distributed free of charge to those in need.
https://www.cnet.com/health/dont-hav...-these-stores/