When selecting a good pulmonary function test (PFT) filter, several key parameters need to be considered to ensure accurate, reliable, and safe testing. Here are the important parameters to consider: 1. Filtration Efficiency Bacterial/Viral Filtration Efficiency (BFE/VFE): The filter should…
Over time, different technological variants have been developed that allow a spirometric measurement to be carried out.These basic methods exist: Mechanical Spirometers: These use moving parts to measure air flow and volume. Examples include bellows and piston spirometers. Pneumotachographs: These…
