breathing-time
131Oxygen mask — A plastic oxygen mask on an ER patient. An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover the nose and mouth (oral nasal mask) or the entire face (full face mask). They may… …
132Samurai Aerobics — Kenjutsu and Kendo are a few types of martial arts that were practiced by the Japanese people. Though it isn t used as much as it used to be, it is still quite popular. These martial arts involve the use of wooden sticks called Bokken. Infobox… …
