He cleans the air very well, but I got an irritated throat after turning on the ionizer.
He now runs nurnoch as a fan when it is playing through the PC in the room too warm.
A disadvantage of the filter is that it receives odors. When I had to saw at rearranging what rightly, began to smell the wood burned. The unit ran by the way to clean the air of particles, but he adopted the burnt wood smell. Well it smells of burnt wood for 3 weeks when I turn it. But that disappears after 5-10 minutes.
Now, if I would buy one, I would prefer a quieter product.