Meet the Sulida Workout Mask 4.0: a training mask with 48 levels of resistance that adds more intensity to your fitness routines. It helps improve your lung capacity and your conditioning. Its valve enables this mask to simulate 20,000ft altitudes.
Trending fitness gear:
You can switch resistance level easily. You can find out about this high altitude simulation mask here.
*some of our articles have aff links. Please read our disclaimer on how we fund Exxponent.