The appearance is good, the lid is attracted by the magnet, and the buckle of the base is easy to break. It should be improved. The black inner layer of the filter is the same as the sponge. The first power-on indicator light is yellow, and it turns green after about 1 minute. The violent mode fan blades are very strong and the wind volume is very large. After inhaling it, the indicator light turns red to increase the horsepower after about 10 seconds. After extinguishing the cigarette butt, it will return to normal one minute. Check that the surface of the filter has turned yellow. The filtered air is normal and acceptable, but After I tried it with a cigarette butt, there was still a hint of smoke, but it disappeared after 5 to 6 minutes after I kept it on.
