Hi!
I have both airsep, and invacare. I use my airsep the most. It has a nice beat to it as far as noise. The invacare is used when my girlfriend comes to visit from Arizona and she sets that up for her use. The invacare bugs me, its quiet then PUSSHHHHHH.
Startles me every time! I watch T.V. and my little DVD portable. Talk on the phone no problems with the Airsep machine. I purchased my Airsep off E-bay, broke down 3 mo. later and spent 250.00 to have it fixed so beware. Probably best to buy it from some of the web sites that are mentioned above.
Happy beading!
Teena