by Omron • Model: PF9940
The Omron Peak Air (PF9940) is a handheld mechanical peak flow meter designed for the daily monitoring of Peak Expiratory Flow Rate (PEFR). It helps patients and healthcare providers track lung function and detect early signs of a pending asthma attack. The device features a universal dual-flow range that makes it appropriate for use by both children and adults, and it includes color-coded stickers to help personalize the monitoring experience for younger users.
Eligibility may vary by provider and plan. Check with your HSA/FSA administrator for specific details.
Evidence-based evaluation by medical professionals
"The Omron Peak Air is a budget-friendly and durable mechanical meter that provides consistent Peak Expiratory Flow monitoring for families without the need for electronics."
The Omron Peak Air (PF9940) is a mechanical, Class II medical device designed for the domiciliary monitoring of Peak Expiratory Flow (PEF). It features a universal range of 60 to 720 L/min, which is specifically engineered to accommodate both pediatric and adult populations within a single device. The unit operates on a time-tested spring-and-piston mechanism that captures the maximum velocity of air during a forced exhalation maneuver. Our technical assessment indicates that the device meets standard technical requirements for accuracy and repeatability for home monitoring. The design is lightweight and reusable, featuring a sliding indicator that holds the measurement until manually reset. While the 720 L/min upper limit may be slightly restrictive for very high-flow adult males or athletes, it provides sufficient range for the vast majority of asthma and COPD patients. The device includes adjustable color-coded markers for manual zone management, assisting users in following their personalized asthma action plans.
Ranked #22 of 22 clinically evaluated peak flow meters devices
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Professional medical supply listing; often used for clinic stock.
