I run this in the room where the dog beds and litter box live, and the difference by morning is real. The enhanced activated carbon actually keeps up with two pets, and the 360° airflow reaches the whole space instead of just one corner.
The cat litter corner used to hit me the second I walked in the door — three days in with this thing running and that smell is basically gone. The activated carbon layer seems to be doing the real work, not just moving air around.
I run this in the room where my two dogs sleep, and after about a week the lingering dog smell was gone — the enhanced activated carbon seems to actually do something. It handles the whole 1500 sq ft without me moving it around.