ADVG Cardiovascular Diaphragm Training Mask 1.0 | Black
The ADVG training mask is a scientifically proven method to enhance cardiovascular health and strength. This resistance training mechanism restricts the inflow of air which forces the user to breathe in harder using their lungs, diaphragm, and chest muscles in order to get the same amount of oxygen (O2) and expel carbon dioxide (Co2). In short, users are forced to engage more of their cardiovascular muscles
This mask has a strap allowing the size to fit all users with head sizes S,M & L.