RE: Torr18 Mar 2021 11:25
"How long do CIDALTEX® masks last? Can they be reused?
The recommended wearing time for IIR and FFP2 CIDALTEX surgical masks® is a maximum of 4 hours. Indeed, as with the usual masks, the humidification of the mask by breathing alters the qualities of the mask and decreases the efficiency regarding filtration.
IIR and FFP2 surgical masks can be used once."
Only lasts 4 hours so not nearly as good as ours !