My relapses sneak up on me--both have been due to worn Ultra mirage masks. I think their literature suggested replacement every four months--my insurance pays for a yearly mask, but maybe more often for a replacement rubber part-don't know the correct name. Anyway a year ago I suddenly realized I wa...

Some vendors will sell reconditioned machines which is what I purchased when I didn't have insurance, however, it looks like prices on line for a new machine are what I paid for a used one. So be careful and shop around.