My initial post was written while unhappy with the TSA, and has the length of an essay. Here's the gist of my post:

How hard is it to get TSA agents to wear clean gloves when inspecting a medical device? We had zero luck in three tries asking.

I'd previously read--here and on the TSA website--that medical items were never even supposed to be touched by TSA agents. If they inspected your medical items then you opened and closed them yourself: they didn't do so.

Does the TSA classify CPAP machines as non-medical? The one sign I saw (at sfo?) listed CPAP machines with VCRs and full game boxes as items that must be inspected. But a need for inspection doesn't mean the CPAP isn't a medical device, and deserving / requiring careful and hygenic handling.