13. Scavenging system APL valve Soda lime Corrugated tube bellow Flow meter ventilator vaporizer
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19. SPIROMETERY Spirometry is a method of assessing lung function by measuring the volume air that the patient is able to expel from the lungs after maximum inspiration. It is reliable method of differentiating between obstructive airways disorder (COPD, Asthma) and restrictive diseases (Where the size of the lungs is reduced). Spirometry plays a key role in the diagnosis and assessment of chronic obstructive disease COPD. COPD means airways obstructions which does not change markedly over several month. TYPES OF SPIROMETRY DONE:- 1.Ergo Spirometer 2.Diffusion system 3.spiroscout(based on ultrasound) 4.Ros box 5.Software lf8