anybody use these?

[Corky]

i really wanna get one of these things
cuz like i always say, i am always trying to make my cardio top notch
i love swimming, and i love running, and this thing would look so bad ass if you had amazing cardio and you were running down the street with it on

[Corky]

anybody use *THIS

[LeeCunningham]

...

[Corky]

wow really?
i put a pic of

[Benjamin Salah]

...

this

[Corky]

i was asking about the elevation mask
sorry the picture didnt work for some reason :/

[Cookie Monster]

will this work insted?

[Nat Cummings]

I've seen them at my old kickboxing gym and one at 10th Planet Peterborough. Everyone who used it got exhausted pretty quick as far as I can remember...

[Corky]

lol
nope
and i wonder how you are supposed to breathe in the gasmask
if you are supposed to:
inhale and exhale with your mouth
inhale and exhale with your nose
inhale with your nose and exhale with your mouth or
inhale with your mouth and exhale out your nose

[Robert Sevigny]

if seen people sponsored by these, curious if they really work or not,

i think this would work better