Some of the differences between the CPAP and the BiPAP are that the CPAP pressure setting is fixed while the BiPAPâs can be adjusted. The CPAP delivers one level of air pressure while the BiPAP delivers two. A CPAP is less expensive than a BiPAP, while the BiPAP tends to be slightly noisier than the CPAP.
Anaerobic bacteria are bacteria that do not live or grow in the presence of oxygen. In humans, these bacteria are most commonly found in the gastrointestinal tract. They play a role in conditions such as. , , and.
Aerobic bacteria thrive in the presence of oxygen and require it for their continued growth and existence. Other bacteria are anaerobic, and cannot tolerate gaseous oxygen, such as those bacteria which live in deep underwater sediments, or those which cause bacterial food poisoning. The third group are the facultative anaerobes, which prefer growing in the presence of oxygen, but can continue to grow without it.