Since the recall, I have reverted to a very old machine that I had as a backup. Specifically, it is an F&P HC-233. The only thing it measures is motor hours. This is even more primitive than a car odometer. An odometer measures whether the car is actually moving. This meter doesn't care if you have the mask on or even if the hose is attached.
Furthermore, I'm not sure if I'll be able to get replacement filters or a replacement water tank for this one. I'm not sure if they're available at all, and I'm not sure if my insurance will cover it, especially in the absence of compliance data.
Note that this machine can't be used without the tank, due to its configuration. As you can see the hose goes into the water tank. It cannot connect directly to the unit.
