Review on 🏋️ Iron Crush Workout Mask for Respiratory Strength Training – High Altitude Exercise Mask with 24 Breathing Resistance Levels – Running Mask for Boosting Performance in Men and Women by Bryan Gallardo

This mask is effective and really helps to improve the cardiovascular system. The levels and design are quite intuitive, but I'd like a slightly larger size since I have a big head. Second, the mask doesn't fit my glasses well, so I would recommend wearing contact lenses or removing the glasses while exercising. .Finally, cleaning the mask is not so easy for me. I removed the fabric and washed but the inside of the mask remained unwashed. BUT the mask has several qualities that justify the purchase and the look.