I never thought an air purifier could make such a difference in your daily life. I have been using the Shark Air Purifier 3-in-1 for weeks now.  I am amazed at the high percentage of air borne allergens and irritants that it captures. I no longer wake up in the morning with a stuffed up head and headaches. It not only helps with the pet dander it also absorbs pet odor leaving the air fresh and clean. A plus is having the option of a fan for those warm days and a heater for cooler days. The purifier is very quiet and doesn't interfere with sounds around you. It is such a game changer for me!