Respiratory

In medicine, a machine used to help a patient breathe. Also called ventilator.

Distinct from cell or tissue respiration, Respiration is the act of breathing with the lungs and consists of inspiration, or taking ambient…

A naturally occurring, crystalline metal oxide. Respirable tridymite is mainly found in volcanic rocks. Inhalation exposure to respirable tridymite causes chronic silicosis,…

A widespread, naturally occurring, crystalline metal oxide, and is a component in most rocks. Respirable quartz is found in metal and nonmetal…

A manufactured fiber in which the fiber-forming substance is glass. Silicon dioxide is the primary chemical component in all glass types; however,…

A widespread, naturally occurring, crystalline metal oxide that consists of different forms including quartz, cristobalite, tridymite, tripoli, ganister, chert and novaculite. Respirable…