This filter is designed to fit AEIBE 3Ply filtered face masks and we do not recommend use in other masks.
Due to current high demand for this material, purchase is limited to 2 sets per order. Thank you for your understanding.
PLEASE NOTE: this is not medical grade product. Filters cannot be returned or exchanged for hygiene reasons. The UK government advises that face masks should not be worn by those who may have breathing difficulties whilst wearing it.