Note that our reusable face masks are not medical devices or personal protective equipment (PPE). PM 2.5 filter is sold separately. Material: 100% Cotton (inner layer), 100% Polyester (outer layer) Care instructions: Hand Wash Cold temperature, Tumble Dry Low, Do Not Bleach. Instructions: Unfold mask, Insert PM 2.5 Filter, Cover mouth and nose with hook straps behind ears, Press inner strip to fit nose bridge. FOR GENERAL PUBLIC USE NON MEDICAL PURPOSE NOT INTENDED FOR USE BY A HEALTHCARE PROFES Sequin Mask, Flip Flop Socks, Winter Face Mask, Rainbow Zebra, Winter Face, Medical Devices, Cold Temperature, Pink Rainbow, Pink Zebra