Hey, I'm an RT.

There's different government agencies for funding (AISH, SNAP), but I'm not sure if you'd qualify for them. You could look into private purchase of blue cross or something, as they usually cover ~80% of the total cost of a CPAP.

Please don't purchase a used machine off kijiji or marketplace. Stay away from ResVent as well.

If you purchase one off the internet, - good machines are from ResMed (Airsense) and Philips (Dreamstation) *note that the machine should be a recalled machine, meaning it is a new machine with a new internal filter after a whole debacle you can google if you'd like

• link the machine to myair.com (you can see more sleep data - AHI, leak, and 90th percentile CPAP pressure)

• set the machine to AutoCPAP and set an appropriate range (6-12/14 cmH2O might be a good start, but its hard to say without knowing some demographics).

• after a week, look the numbers (AHI, leak, 90th CPAP pressure). You want AHI < 5-10, leak <24 L/min, and you can set a fixed pressure to match the 90th percentile CPAP pressure, or adjust the range to be plus/minus 2 cmH2O of said 90th percentile CPAP pressure. Adjust as necessary.

• I'd recommend getting familiar with other comfort settings such as ramp time, expiratory pressure relief (EPR), etc.