@another_katt@mastodon.social @Billius27@mstdn.ca

https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/respsource3approval.html

"Most valid NIOSH-approved N95 respirators will have two headband straps, not ear loops. However, a few NIOSH-approved models are approved with ear loops because the loops are secured behind the head with a non-removable fastener."