14 May
2020
14 May
'20
8:08 a.m.
Standards compliant masks and respirators available at your online markets... ebay, aliexpress, mercado, industrial supply shops, etc. Even air filter / HEPA paper has some specs. n95 / n99, kn95, p95 / p100, p2 / p3, ffp2 / ffp3, dl3, niosh, etc