Cleaning & Using old machines

I have a friend who sort of runs a charity (she mostly deals in food, clothing, and school supplies) but she got three old CPAP machines in a donation recently and since she knew me and my husband both use CPAPs she gave us these machines. They are old and pretty dirty. One is actually a bipap. They smell of cigarette smoke big time. But I took the filter out of the Remstar Plus and the filter wasn't terribly dirty, but there was a bunch of dust and grime all over the machines. The white machine didn't have a filter in it.

I would really like to clean these up and put them in our RV so we don't have to pack up our machines every time we go on a trip. Here are pics of the two CPAP machines. I found instructions online on how to change the pressure on the two black machines, but not the white one... But I don't know if we should use them since they were so dirty. What would you folks do?? Is there a way to clean them? Maybe just clean the surface dirt and then let them blow for a while to get any dust out?





I didn't take a pic of the Bipap, but it looks like this:

I would wipe down the outside of the machines with some sort of disinfectant. Surface cleaning.
Change the filter to a new filter no matter how the old filter looks.
Let the machine run outside in nice fresh air for hours and hours (it will take hours and hours and hours to have any chance of removing the smokey odor).
The M series BiPap has some silicone gaskets that could be changed that might help with the odor but the bulk of the odor will be from smoke odor that has gotten into the foam insulation that is inside the blower unit.
These machines can be disassembled and cleaned on the inside but the foam could still be stinky.
A lot of it will depend on just how many hours the machine was used in the smokey environment.

The white machine is the Respironics Remstar LX....older than the Legacy series and the Legacy machine is older than the M series.
This might help you with the LX
http://www.apneaboard.com/manuals51/REM ... -Setup.pdf

Full provider manuals available from here by request via email.
http://www.apneaboard.com/adjust-cpap-p ... tup-manual

If it were me I would try easiest first..that would be airing the machines out with lots of outside air blowing through the machines.
New filter and of course new hose...see if that worked or not and then decide if I wanted to tackle disassembling the blower unit. I am not real good at that sort of thing. I am famous for taking things apart but totally suck and putting them back together again.

Ozium sprayed on a cotton ball, near, but NOT TOUCHING the air intake while it runs 2-3 hours. NO ONE BREATHING THE AIR.
You can pack the machine in a sealed box with an opened bag of charcoal (not touching--or running) for a weekend or so.
Be sure to flush fresh air through everything--thoroughly--before testing.
Lie down with it running for an hour or so sometime before departure--just to see if you can stand it.