High quality KN95 filters with 5 protective layers.
To be replaced every 30 days or 70 hours of use (whichever is sooner)
Pack of interchangeable filters (sets of 3, 5 or 10) to use with your mask.
How many do I need?
If the mask is worn daily a filter will last about 4 weeks, or 70 hours (whichever is sooner).
The effective working life of the mask filter depends on a number of factors, such as; the breathing rate of the user; ambient levels of pollution; the length of time the filter is actively working; hygiene levels.
We recommend cleaning the filter every week (with warm water and soap). Once the filter is uniformly light brown, we recommend switching it with a new one.