The peak flow meter is an essential tool for monitoring asthma in adults. It detects narrowing of the airways before symptoms appear, giving the patient the opportunity to intervene promptly with the appropriate treatment.

Main features:
- Measures daily changes in breathing
- Records the progression of asthma over time
- Shows the effectiveness of treatment
- Recognizes the signs of an attack before symptoms appear
- Provides guidance on what to do if signs of an asthma attack occur
- Determines when it is advisable to contact a doctor or emergency services

Measurement zones:
- Green zone (normal): PEF >80%
- Yellow zone (warning): PEF =60%, <80%
- Red zone (danger): PEF <60%

Contents:
- 1 piece