ENDORSEMENTS: "This model is really suitable for warmer seasons, breathing is easier due to POWA valves and the design is awesome. " "This mask has been a lifesaver, my lungs donât burn when Iâm done and donât wheeze as much. I have run in this mask when itâs over 100 deg F out (38 C), and yes, it is hot, but itâs not as hot as a buff or a bandanna. " "Great mask for humid and hot Hong Kong environments." |