What electrically powered device can separate the O2 in room air from N2, thereby providing an enriched flow of O2 for therapeutic use?
a. O2 concentrator
b. O2-conserving device
c. Joule-Thompson enricher
d. Molecular impactor
ANS: A
An O2 concentrator is an electrically powered device that physically separates the O2 in room air from N2.
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