KNOXZY Peak Flow Meter for Adult to Monitor Lung Function - Expiratory Flow Meter to Monitor Respiratory Condition - Spirometry Lung Function Recovery Training Device - Standard Range for Adult

Found this very helpful. I have copd. This gadget gives me a reading of how my lungs are. It makes me want to improve them as I can see results. A challenge if you like.

Very good quality product

Thank you

Easy to use, great vfm and ultimately disposable

This is one of the best tools I've have ever bought its solid all in one no attachment needed works perfectly would recommend to anyone

Works as expected

Great oroduct

This does not work properly and could cause people who require to get a peak flow reading regularly. It is a waste of money. It is not fit for purpose

Es ist ein günstiges Produkt und von den Materialien wirkt es auch billig, aber es macht das, was es soll, und zwar so zuverlässig, wie ein weitaus teureres, elektronisches Gerät. Ich bin damit sehr zufrieden und kann es empfehlen.

Calidad- precio buena

Utile

Buon acquisto

Solo lo quería para ir controlando la capacidad pulmonar, y me va bien. No se si las medidas volumétricas del flujo de aire que marca el medidor son precisas, pero yo solo necesito comparar medidas, no su valor. Por eso las 5 estrellas.