Spirometers should be cleaned according to the manufacturer’s recommendations and local polices, but disinfection once a day is advisable and feasible.

Different types of spirometers govern the appropriate method of cleaning

Flow measuring devices can often be totally dismantled and sterilised, however the delicate components of the sensors will determine the best method of cleaning.

Volume displacement spirometers will hold a volume of air between patients and this can pose an infection control risk. It is good practice to flush the system through between patients. Although, not used clinically any more, water sealed spirometers should be regularly drained, left to dry and refilled with distilled water to prevent an accumulation of micro-organisms.

Accessible internal and external surfaces of the spirometer should be decontaminated. Where there is obvious soiling or condensation accumulating in the systems this is also a good time to perform a cleaning routine.

With regular cleaning, this is also a good opportunity to inspect the equipment for any faults such as splits in the tubing or degraded rubber valves, for instance.