BBCNEWS Click June 3, 2021 02:47:00
The levels down again. the final machine i tested was the dyson purifier hot and cool formaldehyde, which is called that because it not only removes dust from the air, but can also break down formaldehyde. one thing i did like about this machine is, as well as being a passive airfilter, you can also use it as a fan on a hot day to blow air at you and cool you down, which the other two didn't do. and i think if you're going to have something this big stood around in the home, it may as well be dual purpose. iran the machine for 2a hours in auto mode and here are the results. here's the first da...