Use these filters with Teen, Adult Female, and Adult Male sizes. One filter included. If you want multiple, please use the numbers to change the quantity.
5 Layer Filtration using layers of a non-stick electrostatic spun cotton outer layer, with micro-filtration inner layers and an activated charcoal core. Perfect for protection against dust, bacteria, pollen, allergies, smoke, pollution, and ash.
These are not washable filters and are suggested to be replaced every 80 hours give or take based on the strenuousness of use. Always replace at any sign of soiling.