Training Mask - Workout High Altitude Elevation Simulation Oxygen Air - for Gym, Cardio, Fitness, Running, Endurance, Resistance and HIIT (Black)

I use them for my 30 min cardio. The first time I felt like I couldn't breathe, but I made it. After I took them off for the rest of my weight workout I was pumped. I could breath so good. I use it every day. This is great I noticed my energy level at work has increased as well. I quit social smoking and I feel this has helped me regain my endurance.

The mask overall works great but the adjustments do not make a huge difference in breathability.It gets the job done and I thing its a great pick up for the price

Wore it during a circuit training routine. It was uncomfortable not being able to breath normally, but when I took it off after my workout I was shocked at how different breathing felt. It was like taking leg weights off after getting used to them...I was able to breathe so effortlessly.

The levers to adjust the levels snapped off during the first use. They levers and mask overall are very frail. The mask itself fits well however, and it is very comfortable.

i did not like this product to well after 20 minutes of use it becomes kinda uncomfortable wear and the vents didnt work properly so it a no... for me

The silicone on the right side of the mask was creased on arrival. Because of this, it doesn’t form a seal and air is sucked in through that crease.It’s no effective or comfortable because of this defect.

Such a great product perfect for the gym. I use it everyday and have no issues at all! I soak it in Persil and hot water every other day for cleanliness and it’s good as new

Not a lot to it for the price. Lacking user guide for instance. I’m starting the return process now.