Can FFP3 and FFP2 masks be disinfected for reuse? What would be the procedure: autoclave, pulsed light or what would it be? / FFFP3和FFFP2型口罩可以消毒后再使用么?应该怎么消毒?高温消毒还是紫外线消毒?或者是其 他别的什么方法?