Review on 🏋️ SATKULL Training Mask: Boost Cardio and Fitness with 24 Breathing Resistance Levels for High Altitude Training and HIIT Workouts by David Estevez

I received it today but it doesn't work. I tested it at the gym for 5 minutes on the treadmill and 5 minutes lifting weights. I am a 220 lb person who is 5ft 8 in 1 - very tight, the strap came off twice as the velcro gripped a little less than 3/4"2 - you can't get too heavy while breathing, doesn't matter if you open 4 layers on each side 3- if you have a beard and round or broad head it won't fit 4- there are only 4 layers on each side no matter how slowly you make changes, there are only 4 changes 5- if you wear glasses it will be very difficult for both to be on your face trainer or an over the top person who works out at the gym then this mask is not for you.