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PeakAir Peak Flow Meter

Model: PF9940  |  In Stock
SALE: $19.99

MSRP: $25.75

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PeakAir Peak Flow Meter
The PeakAir® Peak Flow Meter is used to measure your “Peak Expiratory Flow Rate,” which is simply the highest speed you can blow air from your lungs. Your physician or other licensed healthcare professional has recommended that you use a Peak Flow meter to monitor changes in your airflow. With recommending the use of a Peak Flow meter, your healthcare professional will also give you a treatment plan that will tell you what action to take when you see changes in your peak flow readings.


  • A Peak Flow Meter Accurately measures Peak Expiratory Flow Rate (or PEFR) to tell you how quickly air is leaving your lungs
  • Instant readings help you track any changes in your air flow
  • Compact design allows you to check your PEFR discreetly any time you want
  • Assists detection of pending asthma attack
  • Dual Flow Range accurately measures for both adults and children

Product Info

30-day money back guarantee

In Box

Includes: peak flow meter, reusable mouthpiece, instruction manual with peak flow diary



Limited Warranty

Your Omron PF9940 Peak Flow meter is warranted to be free from defects in materials and workmanship appearing within 1 year from the date of purchase, when used in accordance with the instructions provided with the unit. The above warranty extends only to the original retail purchaser. We will at our option, replace without charge any unit covered by the above warranty. We will at our option, replace without charge any unit covered by the above warranty. Replacement is our only responsibility and your only remedy under the above warranty.


Product Reviews

Omron PeakAir Peak Flow Meter is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Good for asthma I have asthma and this keeps me informed of my airflow.
Date published: 2015-12-22
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More Information

The Zone Monitoring System

Before you use the zone system described here, we recommend that you review it thoroughly with your physician or other licensed healthcare professional. No matter what your peak flow readings are, if you have signs and symptoms such as chest tightness, shortness of breath, coughing or wheezing you should follow your healthcare professional’s advice for contacting him/her.

The use of a three zone monitoring system* set up like a traffic light uses colored zone markers (Green-Yellow-Red) and has proven very useful to patients watching their asthma with peak flow readings. Once your green, yellow and red zones have been determined, record their values in the spaces provided in the peak flow diary. Then set the zone markers on your Peak Flow meter to correspond with those values.

Do not attempt to remove the colored clips once they have been attached to the PeakAir. They are designed to stay in one position, and not move.