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mDB technical manual
c) Reinstall the drain caps, cylinder connectors and oral airway. Orally inflate the MDB until it is
partially inflated. Store the MDB partially inflated, away from direct sunlight and in a clean, dry area.
Do not store in an enclosed space, such as a car trunk, where temperatures may fall below -18ºC
(0ºF) or rise above 49ºC (120ºF).