3M offers FFP3 masks without valves [0]. I found a couple more companies with disposable FFP3 masks, but none with N99 certification. I managed to buy EGE masks

3M offers FFP3 masks without valves [0]. I found a couple more companies with disposable FFP3 masks, but none with N99 certification. I managed to buy EGE masks (made in Turkey, but certified in EU) [1] when I was in Bulgaria and they were less than $2 a piece. The other part of the math of masks is that a $2 FFP3 mask is actually cheaper than a KN95 mask, which has a shorter lifespan. [0]: https://www.3m.com/3M/en_LB/p/d/v101158114/ https://www.3m.com/3M/en_LB/p/d/v101158114/ [1]: https://www.egemaske.com/ege-700-ffp3-nr/ege-700-ffp3-nr-d.html https://www.egemaske.com/ege-700-ffp3-nr/ege-700-ffp3-nr-d.h...