It wasn't enough inhale/exhale. Cetacea are deliberate breathers who must be awake to inhale and exhale. Work of breathing (WOB) is the energy expended to inhale and exhale a breathing gas. I, Inhale Exhale and Of Machines. Breathing is ideally even and steady in the length of the inhale and exhale. Some smokers inhale the smoke into the lungs, particularly with little cigars. Research shows that people do inhale smoke from little cigars. Elephants inhale mostly through the trunk, although some air goes through the mouth. Kirby can also inhale Gooey and swallow him, reclaiming his two hit points. Dry-herb vaporizers can be used to inhale marijuana. Infants can also inhale contaminated fluid from the vagina at birth. When in the air, the farmer may inhale the particles and induce an allergic reaction. These are often improvised from PVC so users will inhale toxic plastic components. Ethane is also extremely flammable, dangerous to inhale and explosive. Vaporizers can be used to inhale other recreational drugs as well.