My DD has one, my son has an Inspiration I think? Anyways, his compressor has outlasted 3 Pari Vios. After about 6 monhs they just seem to stop working. The filter is clean, we tried new hoses and such. It is taking her 3X as long as him to do the same meds. The output of air gets so weak, and they get very loud and almost rattley sounding. Shouldn't they last longer than that?