Definitions for "spacer device"
Keywords:  halves, inhaled, plastic, canister, mdi
a large plastic container, usually in two halves that click together
a see-through plastic container, usually with two halves that click together
A small tube-like device, usually made out of plastic, to which a pressurized metered-dose inhaler (MDI) is attached; depression of the MDI canister delivers a dose to the spacer which holds it long enough for the medication mist to turn into a very fine cloud of vapor that is inhaled when a breath is taken.