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And remember: Contrary to DIY masks or surgery masks, FFP2 masks are single-use only. You can attempting to reuse them, but as German scientists and the US CDC have tested in experiments, its very complicated to achieve any significant reduction in the contamination: You can dry them for a day in a place with really dry air in your house (not the bath room or basement) and then place them into the oven at 80°C (no forced air circulation!) for some minutes. Or into a rice cooker at 80°C, if you place them on top of a dry towel to ensure even heat distribution.
But usually, you are supposed to only wear them once. Also, you should NEVER wear them longer than for 75 minutes and then take a 30 minute break - those masks limit your breathing much more than DIY masks. Unless you are used to breathing with gas masks or oxygen bottles, take the 75 minute rule really as the final red line.
But usually, you are supposed to only wear them once. Also, you should NEVER wear them longer than for 75 minutes and then take a 30 minute break - those masks limit your breathing much more than DIY masks. Unless you are used to breathing with gas masks or oxygen bottles, take the 75 minute rule really as the final red line.