Air breaks are taken between oxygen breathing to reduce the risk of oxygen toxicity.
2.
Air breaks of 5 minutes are taken at the end of each 30 minutes of oxygen breathing.
3.
Not only do fish and other aquatic animals need it, but oxygen breathing aerobic bacteria decompose organic matter.
4.
Oxygen breathing during surface intervals reduces the time to fly by a factor of seven to nine times compared with air.
5.
The diver then completes the treatment breathing oxygen and is followed by oxygen breathing on the surface for 30 minutes post treatment.
6.
The "'SDBA "'( Special Duty Oxygen Breathing Apparatus ) is a type of frogman's rebreather breathing set.
7.
Mine Safety Appliance in Pittsburgh won a $ 106, 000 contract from the Defense General Supply Center in Richmond, Va ., for oxygen breathing facepiece assemblies.
8.
By 0200, three volunteers in " Pacocha " had donned oxygen breathing apparatuses ( OBAs ) and walked through compartments as far aft as main control.
9.
Because they seal tightly, pressure-demand-type oxygen masks are also used in hyperbaric oxygen chambers and for oxygen breathing research projects with standard oxygen regulators.
10.
Mine Safety Appliance Co . of Pittsburgh won a $ 106, 000 contract from the Defense General Supply Center in Richmond, Va ., for oxygen breathing facepiece assemblies.
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