My Shark Air Purifier Max 3 in 1 is absolutely wonderful. It has a 1000 Sq.Ft. Max cleaning area. It also has three modes. One mode is just for purified air, one is for purified heat and one is for purified fan. So you can set the thermal comfort control to the temperature you want the room and it will heat it or cool it with oscillation. It's ideal to capture pet dander and other odors. I like the feature that it let's you know how much clean air is in your room until it gets to 100%. I trust the name Shark because I have quite a few products from Shark.