Review on 💨 Revolutionary Exhalation Activated Filters: Enhancing Breathability for Optimal Comfort - Blue1Set by John Rodriguez

breathable, fashionable, comfortable and easy to care for... Easy to change 5-layer protective filter. The working air valves can also be replaced [supplied with 2 sets]...excellent quality, it comes with nine sets of filters. I switched to this type/style under another supplier Lovell I believe [and they were black] they are blue...lightweight and tight with velcro straps and backing. Great price too...