I've been using the Shark Air Purifier 3-in-1 for a few weeks now and I've got to say this is the best air purifier I've ever owned. Not only does it purify the air with a large HEPA filter, it functions as an oscillating fan and heater! It's unbelievably quiet. I couldn't hear it operating until the fan is set to the highest settings. The large back-lit display provides real time feedback about air quality and temperature. And the included remote is super convenient and can control all the basic features from across the room. The display can be dimmed but is still pretty bright even at the lowest setting. I feel better knowing the air purifier is actively cleaning the air I breathe. Absolutely recommend the Shark Air Purifier 3-in-1 for cleaner air!