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Peak Flow Meters

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Peak flow meters are used by patients with asthma or other lung disorders. This tool allows physicians to further determine the severity of any lung illness. Read More…

Peak Flow Meters Peak flow meters are portable, inexpensive, hand-held devices used to measure how air flows out from a person's lungs as well as monitors the intake of air into the lungs.
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Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support. When it matters, choose Sierra. Visit www.sierrainstruments.com.

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Sierra Instruments $$$

Sturtevant, WI  |  262-886-2695

SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.

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SIKA USA $$$

Tucson, AZ  |  888-290-6060

We are manufacturers of Internally Compensated Laminar (ICL) mass flow meters and mass flow controllers. Flow rates as low as 0.5SCCM full scale, as high as 1500SLPM full scale. Standard features: local display, 14-gas calibrations per unit, digital and analog communication, 100:1 turndown.

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Alicat Scientific, Inc. $$$

Itasca, IL  |  888-539-3623

Keyence is a leading supplier of flow meters and many other automation components. Our flow meters are compatible with everything from compressors to receiving tanks to machine drop points, while measuring both overall usage and costly leakage amounts. Additional features include multiple numerical and graphical data displays. Visit our website to find out more about our products.

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Keyence Corporation of America $$$

Wilmington, NC  |  910-392-2490

Since 1984, Eastern Instruments has been engaged in the development of solid particle mass and airflow measuring and control systems for clients in the food, petrochemical and agricultural industries. Many of the “legend” companies use Eastern Instruments’ in-processes, making brands that touch the lives of millions every day.

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Eastern Instruments $$$
placeholder image Sierra Instruments SIKA USA Alicat Scientific, Inc. Keyence Corporation of America Eastern Instruments

Peak flow meters provide many uses for patients with asthma or lung disorders. They help determine if a patient needs to adjust his or her daily medication or can show that patients may need to change the way they are using their medicines. Because peak flow meters may help identify causes of asthma at work, home or play, they may also help parents to determine what might be triggering their child's asthma. Peak flow meters can also be used during an asthma episode.

Flow Turbine Peak Flow Meters - Hydra-Check

These meters can help determine the severity of the episode, decide when to use rescue medication, and decide when to seek emergency care. They are small devices that are easy to put in a pocket or purse if needed. Translucent plastic is widely used because it allows the user to quickly make a clear reading and is durable.

Peak flow meters are available in a variety of sizes and shapes; however, all peak flow meters work a similar way. A mouthpiece is attached to a plastic tube with a scale and slider or pointer mechanism at the opposite end. They are read similarly to flow indicators. A user inhales deeply and expels as much air from his or her lungs as possible into the flow meter; these devices are self-powered, unlike electromagnetic flowmeters.

The force is the peak expiratory flow (PEF) and is frequently measured in liters per minute. The pointer moves in accordance with the volume of air exhaled and the reading is recorded. Peak flow meters rates may be tracked and charted during the course of a day to help monitor asthma. A "normal" peak flow meters rate is based on a person's age, height, sex, and race. A standardized "normal" may be obtained from a chart comparing the patient with a population without breathing problems. Each patient has his or her own "normal" peak flow meters rate.

Three zones of measurement are commonly used to interpret peak flow meters rates, based on level of danger. These three zones are typically classified as green, yellow, and red, similar to the meaning of traffic lights. Peak flow meters come in two ranges of measurement, low and standard. Low range peak flow meters are for small children, and a standard range meter is for older children, teenagers, and adults.

Peak Flow Meter Informational Video