Our air purifier arrived yesterday (a day earlier than expected) so we set it up and turned it on right away. I am anxious to see how it works and am hopeful that it will make the air quality better in our home so Elizabeth can sleep through the night without having a coughing attack.
I kept it in the living room last night and I was able to sleep through the noise of it on the highest setting. It isn't quiet when it is on that setting, but if it wasn't directly in the room with you, there shouldn't be any problem falling asleep. It is just loud white noise.
It is heavy so lugging it up and down the stairs will be a bit of a challenge for me (we want to move it to each of the three floors in the house throughout the week so we can make sure all areas get purified) but at the expense of the unit, there was no way we would have been able to afford two or three so moving it is our only option at this point.
I stayed in the house last night and didn't seem to have any problems/reactions to the environment. Hopefully, it will continue that way once we move back in after the mold is removed from the basement!