Not only is this device accurate, it's also washable and can be used with a disposable mouthpiece as well as being incredibly lightweight and portable, all designed for the ease of the user.
Rossmax Peak Flow Meter Child PF120A PF120C Respiratory Monitor L/min
Rossmax Child Peak Flow Meter
Easy Peak Flow Meter for Child to Monitor Lung Function, Expiratory Flow Meter, Low Range for Child Include Instructions and Blank Charts – Color Coded Indicators
Easy Peak Flow Meter for Adult to Monitor Lung Function | Expiratory Flow Meter | Color Coded Indicator | Standard Range for Adult | Include Instructions and Blank Charts – Color Coded Indicators
Mini Wright Peak Flow Meter Mouthpieces x 50
250 Standard Two Way Peak Flow Meter Disposable Card Mouth Breathing Pieces
