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🌬️ Breathe Better, Live Smarter — Your Personal Lung Health Tracker
The Digital Peak Flow Meter by Nascool is a compact, highly accurate spirometer designed for home use by adults and children over 6. Featuring a pressure differential sensor that meets ATS ERS WRIGHT standards, it delivers reliable PEF and FEV1 measurements without calibration. Its portable design is easy to clean and perfect for travel. The included asthma diary app supports manual symptom and medication tracking, empowering users to manage respiratory health proactively.





| Best Sellers Rank | #3,545 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Flowmeters |
| Customer Reviews | 4.3 out of 5 stars 642 Reviews |
F**O
Excellent spirometer
I have now connected this device to my iPhone. This application works extremely well when used in conjunction with this device. I can view the data on my phone and synchronize it to the log page as well as generate charts. It's very useful.
W**D
Great compact device!
As a respiratory therapist, I've used a number of peak flow meters- this one is amazing and great for home use. Small, easy to use and no moving parts. It's easily cleaned and stored, with an easy to read screen. Perfect for travel and carrying to work or school.
N**E
Great for the Price
My doctor recommended I get a peak flow monitor due to my asthma issues. This monitor works great for the price. It beeps kind of loudly when you turn it on and it beeps when it automatically turns off. Unfortunately you can’t turn it off with the power button (it only turns the device on) but since it shuts off automatically after not using, there’s no issues with battery life. You can set up the device phone app to feed into your Apple health data which is great.
D**Y
Easy & accurate.
Easy to set up and appears accurate.
B**R
It works pretty well
It works pretty well for the most part, but sometimes it doesn’t save the results and you have to redo it.
M**H
Good product
Nice thing to have to keep eye on asthma. Works as expected.
P**O
Excelente Compra, lo recomiendo 100%
Lo Compré porque es más fácil de utilizar para mi Madre de 87 años y tiene una condición pulmonar y hay que darle terapias. Yo había comprado uno en una Farmacia que resultó ser un poco difícil y dificultoso para ella y este es completamente muy manejable para ella y también para poder guardar sus resultados. Cómodo, Práctico, Útil, Buen Precio y Eficaz. Llegó super a tiempo.
K**E
Works well and EZPZ
Daughter recently diagnosed with asthma. This is an accurate and easy to use. App is nice too.
A**A
device wrong results
i have bought this device for my son he has asthma,It is showing always wrong results and i have tried so many times to connect to my phone but cannot find my phone.... i dont know i think its a waste of money and time i will try to return this device
V**.
Muy bien medidor
Excelente aparato, descargué la app y aunque no se puede conectar x Bluetooth pones la medición y sirve muy bien
Trustpilot
2 weeks ago
3 days ago