Q3 2019 Investor Presentation

What is sleep-disordered breathing? • · Abnormal respiration during sleep - the cessation of breathing or "sleep suffocation" Most prevalent is obstructive sleep apnea - collapse of the upper airway despite ongoing effort Other types include central sleep apnea -- lack of breathing and lack of effort and mixed apnea -- Normal airway Partially obstructed airway Obstructed airway Arousal © 2019 ResMed I Q3 2019 Investor Presentation | 10 ResMed

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