Cleaning a MC44-90 DeVilbliss Oxy Con?

[DeboraCox_facetsdesigns]

Hi - I have two reconditioned MC44-90 DeVilbliss Oxygen concentrators that I use for my torch setup. They did not come with user manuals and I was wondering what I need to do to clean the filters?

The only filter that I can see on the unit is a black foamy insert on the back of the unit that is held in by a plastic mesh piece. Is this the only filter for the unit?

Any help is greatly appreciated!

Debora Cox
Facets Designs
Portland, Oregon

[cc2]

I think there is one under the sieve bed, but would have to google it online to know for sure.

[Ali Oops]

There should be an internal filter also that you will need to replace .