Aroma therapy and CPAP/BiPAP

I have been using a Respironics System One with humidifier and BiPap vavle for approximately 3 months now. A little while into using the system, I began to notice that I was waking with a stuffed up nose. I did alot of online research for this, and found out about the aroma defusers that are sold by many companies, including this one. I decided to make my own. I went to Whole Foods, and bought a bottle of eucalyptus essential oil. I next got one of the little round metal cups that tea candles come in. I placed a cottonball into the metal holder, put several drops of the essential oil on it, and placed the holder directly in front of the air intake filter on my system. This works wonders in helping to keep my nose and sinus clear during the night!
I also have since bought a bottle of lavender essential oil, and I use this when I am having trouble getting to sleep. And, I didn't have to buy a difuser and pads from anybody! I store the cotonball in a small ziplock so it's ready to go the next time.