These filters are only guaranteed to fit the range of Wouf Face Masks we hold.
These replacable filters have 5-layers and are intended to improve the effieciency of the Wouf face masks. Each filter lasts for 8 hours before it is no longer operating at peak efficiency and should be changed. Wash your hands before changing the filter, and then easily slip the filter in the neat pocket of the Wouf masks. A pack contains five replacable filters. All Wouf face masks can be used without a filter, but are made more effective when used with one.
Disclaimer: This does not protect the wearer nor is it PPE in terms of relevant legislation.
Non-returnable for hygiene reasons.