![](/images/new-backgrounds/1329460/32946029x1.webp)
4.The oxygen concentration should be checked every 90 days for units without optional oxygen sensors. The oxygen concentration should be checked every 6 months for units with optional oxygen sensors.
10.2 CLEANING THE CABINET FILTERS
NOTE: All concentrator models have one cabinet filter located at rear side of the cabinet. (FIG. 6)
FIGURE 6 CABINET FILTER LOCATION
1.Remove the cabinet filter and CLEAN AT LEAST ONCE A WEEK depending on environmental conditions. (FIG.7)
2.Clean the cabinet filter with a vacuum cleaner or wash in warm soapy water and rinse thoroughly.
(FIG. 7)
3.Dry the filters thoroughly before reinstallation.
FIGURE 7 REMOVE THE CABINET FILTERS
10.3 CABINET
Clean the cabinet with a mild household cleaner and
14