How effective are small air purifiers in a small room unless you run them at max speed?
I have the Levoit Core 300 and been running it for years. It catches stuff i guess. Filters are dusty. However, now in the winter here in Spain, I am getting cooked unless I open the doors. I try to not abuse HVAC because it dries up the air.
So basically my question is. If I run the Levoit Core 300 at Speed 1 in a 3x3 meter bedroom, am I getting any benefits from this, or because the room is open and the speed is mode 1 and not max (3) is this not really cycling air fast enough to really make a difference?
Thing is, anything above mode 1 is too noisy. I don't really understand how people use air purifiers past a certain noise level. And for sleep forget about it. I really have to turn it off. Plus im worried this thing delivers electromagnetic waves of some sort. In Amazon comments someone measured this and apparently some of these air purifiers deliver a ton of stuff of this nature. I guess nothing radioactive but something to consider that may disturb your sleep beyond the noise?
Anyway let me know thanks.