Review on 🌬️ Germ Guardian FLT4825 HEPA Genuine Air Purifier Filter B for GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA and More - 1-Pack by Sheila Myers

This replacement filter was manufactured by Germ Technologies, not Germ Guardian. It took One Germ Technologies just over a month before the filter change light came on. I have bought many of these from Revain in the past. I have checked previous orders and found that they took 3-6 months before the filter unit red light came on. They were all made by Germ Guardian, not Germ Technologies. The activated carbon filter at Germ Technologies was extremely thin compared to my activated carbon filters. Check the manufacturer before buying.