Nortek, Inc. engages in the manufacture and sale of residential and commercial building products primarily in the United States, Canada, and Europe. The company’s Residential Ventilation Products segment offers kitchen range hoods; exhaust fans, including bath fans and fan, heater, and light combination units; and indoor air products, such as air exchangers, heat or energy recovery ventilators, and powered attic ventilators. This segment also sells door chimes, medicine cabinets, trash compactors, ceiling fans, and central vacuum systems. Its Technology Products segment provides audio/video distribution and control equipment, such as whole-house audio/video systems, video signal transmission and conversion devices, and home integration systems, as well as accessories, such as structured wiring, power conditioners, and surge protectors; security and access control products, such as intrusion protection systems, components for closed circuit television systems, garage and gate operators, and devices to get entry to buildings, as well as gated properties. This segment also offers wall mounts, desk mounts, arms, carts, workstations, and stands that attach to various display devices. The company’s Residential Air Conditioning and Heating Products segment provides split-system and packaged air conditioners, and heat pumps; air handlers; furnaces; and related equipment, accessories, and parts. Its Commercial Air Conditioning and Heating Products segment offers HVAC systems for hospitals, educational facilities, commercial offices, manufacturing facilities, retail stores, clean rooms, data centers, and governmental buildings; and air conditioning and humidification equipment. The company serves remodeling and replacement, residential and commercial new construction, manufactured housing, and personal and enterprise computer markets. Nortek, Inc. was founded in 1967 and is headquartered in Providence, Rhode Island.