- A tube used for breathing while underwater - Breathing device - Breathing equipment for some in the water - Sub’s air intake - Swimmer’s breathing tube - Underwater breathing device - Underwater swimming equipment
- Inhalation And Exhalation Of Air - Intake of air reforms the bar - Relax, take a deep ... - Respiration - The air inhaled and exhaled in respiration; air which, in
the process of respiration, has parted with oxygen and has received
carbonic acid, aqueous vapor, warmth, etc. - The act of breathing naturally or freely; the power or
capacity to breathe freely; as, I am out of breath. - The power of respiration, and hence, life.