CPAP Masks What exactly are CPAP masks? What types of CPAP masks are there, and how do they differ from each other? Which CPAP mask would you recommend? For a customer who does not have any prior experience with CPAP masks, which CPAP mask is most recommendable as an entry-level product? I am unsure which size CPAP mask I require. Is it possible to first receive a sample or template in order to test mask sizes? Which CPAP mask is particularly easy to use and meets virtually all your needs? Do CPAP masks share universal sizing or must I be mindful and take note of each mask’s and/or company’s & sizing chart? What is the lifespan of a CPAP mask? Do your CPAP masks require the purchase of extra parts or is everything included with the purchase of a mask? Must one purchase a separate hose/tube for each CPAP mask? What can I do if the hose/tube does not fit on the CPAP mask? What is the difference between “vented” and “non-vented” masks? Which version do I need for my CPAP device?