This personal use mask comes in 2 fun designs-- a boxer dog and a golden retriever. Our face masks are made of 2 layers of comfortable polyester with a pocket for inserting a filter. They easily adapt to different sizes with adjustable ear straps and include an adjustable nose-piece to ensure a snug fit. Each mask comes with 2 removable PM2.5 multi-layer filters. Easy to wash between uses! Just remove the filter and add to your next load of laundry (warm, gentle cycles) or handwash in warm water. Remember, our masks offer great everyday, basic protection, but please note these are not N95, surgical, or procedural masks. Size: 8x5.5" when lying flat; one size fits most. Please note: Filter insert can not be cleaned and should be replaced every 1-2 weeks.