Applicable to: Pulmonary function tests, infectious disease screening, pediatric patients or those with weakened immune systems
Infection control: Block the pathogens exhaled by the patient (such as bacteria, viruses, tuberculosis bacilli, etc.) to prevent contamination of the pulmonary function instrument sensor or transmission to others.
Protect the equipment: Prevent secretions or condensate water from entering the interior of the instrument to extend its service life.
Maintain detection accuracy: Low resistance design ensures that the airflow does not affect the accuracy of lung function parameters (such as FEV1, FVC) when passing through.
The primary pulmonary function instrument filter is composed of an air nozzle, an air outlet and a filter membrane. It is not provided aseptically and is mainly used to filter the saliva of patients when they are blowing air to prevent cross-infection.
It adopts high-efficiency filter materials, which can effectively filter particles and bacteria in the air while maintaining good air permeability, ensuring the accuracy of respiratory function tests.
