Nice but perhaps too fragile

A perfect unit, silently delivers 5 minutes of albuterol vapor. Fits in my handbag. Bought a 2nd unit as back up due to frequent power outages in winter, said unit arriving Sept 3. On Sept 5, the first unit stopped producing vapor; After several cleanings, no vapor only liquid dribbling from unit port. So used 2nd unit for next 3 days with no issues. The unit now breaks apart in my hand (White section from blue) at least once a day. Great concept; design needs improving.

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