Omron PF9940 PeakAir Peak Flow Meter,White

Price: $18.49 $14.83
Product prices and availability are accurate as of 2020-09-29 05:10:40 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
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Product Features

Accurately measures peak expiratory flow rate (pefr), or how quickly air is leaving lungs Instant readings help track changes in air flow Compact design for Discreet use Assists detection of pending asthma attack Dual flow range accurately measures for both adults & children