Reusable, washable mask featuring 98% bacterial filtration efficiency. The mask has an antimicrobial treated pocket inside to slip in disposable filters. Five filters are included with the mask, and replacements can be purchased. Filters last up to 24 hours. Two adjustable straps keep the mask secure on the head. Made with Buff's CoolNet UV+ fabric, these masks are stretchy and comfortable, have excellent coverage, and are easy to breathe through.