The purpose of a training mask is to boost your fitness by stimulating altitude training making your body work harder to breathe. Theses masks use a valve system to reduce the amount of airflow to the lungs, which forces you to take deeper breaths.Fitness training face mask for working out and running. This mask filters pollution, pollen, and dusts to make breathing easier. Take deeper breaths and use oxygen more efficiently, all the while keeping dust-mites out!
- Contoured shape for a snug and comfortable fit
- Filter to screen out sub-micron pollutants
- Ideal for cyclist
- Material: Hypo-allergenic Neoprene
- Includes two valves to release heat, water vapor, and carbon dioxide.