Breathing cold air may exacerbate respiratory diseases such as Asthma and COPD. This is because cold air inflames bronchial passages and can make breathing difficult. 
ColdAvenger face masks passively warm and humidify each breath. This helps reduce the effects on the airways from breathing cold air. Gently warming each breath also helps maintain core temperatures. This encourages circulation throughout the body. Fingers and toes stay warmer and your body helps reduce cold stress overall. If you need to be out in the cold, or just want to enjoy the winter months, wear a ColdAvenger. Stay Out Longer.