3 reusable cotton filters
They are made of cotton fabric in the shape of a PM 2.5 filter that can be inserted in any size mask.
Washable and reusable
As cotton is a very fraying fabric it is hand wash recommended.
Filters can be almost any colour that you like from the masks that are available.
If custom colour is what you would like please contact us before or when order is made, if not, plain white filters will be sent.