Respirable
Pronunciation : Re*spir"a*ble (r*spr"*b'l or rs"p*r*b'l)
Part of Speech : a.
Etymology : [Cf. F. respirable.]
Definition : Defn: Suitable for being breathed; adapted for respiration. -- Re*spir"a*ble*ness, n.
Source : Webster's Unabridged Dictionary, 1913