Aqua guard plus is really good purifier
its purify all ineer dust partical and also kills hamfull microorganisms present in the water it is also apporoved by world helth organization( WHO) ITS shows that this is a really good purifier for human beings this is also so helpfull now a days beacause today pollution spreading like a viral desease so prevision is beet than cure use this best purifier and stay safe and healthy its servies is good if you have any complain about this device you can give a notice to its office they will solve your problem