Protects your heart and lungs, especially when exercising! 

Reduces heat loss - keeps hands, feet, and body warmer!

Retains moisture.  Reduces dehydration. Retained moisture is breathed back into your lungs. 

Lowest air flow resistance of any heat exchange device.

Designed and developed by a mechanical engineer  and an allergy & asthma specialist. 

Filters the COLD out of AIR!