I have purchased its purifier recently , directly from their salesperson , first of all tjey deluvered it late, then the person for installing it came late, to be precise he was kust a plumber who is not supposed to open the machine internally, but he did, as the unit was not working. And for even worse he fitted it back , all wrong. Then after lots of complain from my side, their technician visited and suggested for replacement, and its been fifteen days, I m still waiting for replacement