Review on 🌬️ OION White 4-in-1 True HEPA Air Purifier with UV-C Sanitizer - 3 Speed Options by Erica Noble

Device works well as expected. The device is very easy to use, the door cover is easy to remove and the filter is easy to replace. Device control is also very simple and straightforward. It's a pretty quiet device; You only hear the soft whirring of the fan and the airflow. I sleep with earplugs and a small or large box fan running and the fans hum much louder than these air purifiers. There are blue indicators that show when the device is on and what mode it is in. I covered the blue indicator lights with thick opaque stickers as the units work day and night in the bedroom as I am sensitive to any type of light in the bedroom when I sleep. Thick, puffy stickers completely block the display's blue glow. The indicator lights are approximately 4mm in diameter and the decals are approximately 2.5cm in diameter and provide perimeter coverage beyond the indicator lights to fully compensate for light leakage around the edges. Photos of the filter of a block in the bedroom 14x14 and wardrobe 10x5 for six months to eight months. On the right is a new and unused filter. We had a musty smell, lint and dust in a poorly ventilated house and this device helped a lot with spores and such. We ran it non-stop for months to filter out mold spores. We turned it off to test it and the musty smell returned quickly, so we left it on. The musty smell hasn't returned when turned off for the past month or two. Bought another one last week to put on the other side of the bedroom and rotate in the closet, bathroom, kitchen, laundry room or anywhere else. Two in the bedroom or a larger unit could work faster. They recommend vacuuming the filter once a month and changing the filter every six months. I have never vacuumed the filter. I will consider buying a small vacuum and maybe experiment with cleaning the filter with a plastic brush with very soft bristles on the outside.