p.s. I worked on-site at a factory doing industrial automation for a lot of the time; I really liked FFP2 masks because they fit better and my glasses didn't cloud up.
Masks with valves were available (because part of one's regular PPE at times before the pandemic), but no longer permitted.
Yeah, that said FFP2's I think are per WHO only supposed to be for medical professionals - so use is discouraged outside that setting.
"This said, the World Health Organization does not recommend the use of FFP2 for everyone, stating that non-medical face coverings should be used by the general public under the age of 60 who do not have underlying health conditions. FFP2 masks are best used as personal protective equipment (PPE) by healthcare workers or those caring for someone who may have Covid-19 in a community setting. "
Masks with valves were available (because part of one's regular PPE at times before the pandemic), but no longer permitted.