At intensities above tempo I breath through my mouth so not an issue. My nose is too restrictive. I don't see how nose vs. mouth can make much difference to air temp but who knows unless it's tested.
http://www.innerbody.com/anatomy/respiratory
At high intensity though? Surely the air doesn't have enough time to be warmed? Filtered I can agree with but warmed I doubt.
@gbj_tester started
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At intensities above tempo I breath through my mouth so not an issue. My nose is too restrictive. I don't see how nose vs. mouth can make much difference to air temp but who knows unless it's tested.