Sue G. reports: "I use the cannula with plastic tubing. When combined with oxygen underneath the I Can Breathe! Mask with carbon filter, I can go just about anywhere. Heavier duty masks cut off my air so much that they weren't suitable for multiple hours of use. The I Can Breathe mask enabled me to go to Las Vegas."

When Sue received the Lace mask, she wrote it's "beeeyooooteeefull!!! Thank you. A couple more characteristics that set your mask apart from the rest (and would be helpful to point out to consumers): it fits comfortably behind the ears, is easy to put on and remove, and doesn't wreck one's hairdo. I don't know how long you've been marketing this little gem but I sure wish I had tried it sooner. I incorrectly assumed that a mask so 'flimsy' couldn't possibly do the job I needed it to do. Boy, was I wrong!"

Other customers who use cannulas with oxygen have reported wearing the carbon mask while house cleaning and the cold weather mask while scraping ice from car windshields.