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Results 1 - 1 of 1 for mdi
  1. Spacer use - Series (image) 
    ... holding chambers) work with your metered dose inhaler (MDI) to deliver inhaled medication more easily and effectively, ... the "puff" of medicine between you and the MDI, so that you can inhale it slowly and ...
    https://medlineplus.gov/ency/presentations/100203_1.htm - Medical Encyclopedia