The Contempo Series portable ACs produce between 49 - 52 decibels (depending on the BTU) that are about the sound level of an average conversation between two people in a quiet room. Save time, save the heavy lifting by setting up the window kit and switching the AC ON, and voila!! Thermal overload protection means extra safety precautions for added endurance & peace of mind for you and your family. The dual filtering system protects dust, pet dander, and hair from entering the unit, while also Honeywell Contempo Series portable air conditioner, dehumidifier & fan for rooms up to 250 to 400 sq. Ft.