Microlife PF 100 Peak Flow Meter for Spirometry with FEV1

Measures peak flow and FEV1 to indicate early warning signs for impending asthmatic incidents or conditions
Automatically stores 240 readings
Automatic traffic light indicator
Doctor recommended
Meets American Thoracic Society accuracy standards This device is used to measure Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) in both children and adults. PEF is the fastest speed air can be blown out of the lungs after inhalation. FEV1 measures the volume after exhaling in 1-second. Peak Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) measurements can tell how well lungs are breathing by moni More »