I don't know how yours differs, but ours has a bunch of washable filters as well as places where hair can get tangled.

I think you can get them serviced too, if it's a matter of the motor not running at full speed or something. Oh, and another thing that happened to ours was that some internal belt thingy failed and had to be replaced, so it still made whooshing noises but didn't actually suck? Belt replaced fixed that.