I bought a Caire - rebranded as Arya - POC from LPT Medical in October 2022. Although the unit didn't work quite as well as the sales pitch I was very happy with my purchase until the unit failed a few months later. I followed LPT's instructions, including paying $90, and sent the unit via UPS to the repair site in Georgia. UPS says the unit was received on Feb. 22,2023. Haven't heard a word from LPT about repair or replacement. At this point, I have concluded that I've been ripped off for close to $2,500. A mean way of treating a housebound, disabled, senior citizen. Apparently this is the normal business practice of LPT Medical. A great sales force backed up by nothing.