Established in 1967, Nortek Incorporated is one of the leading manufacturers and distributors of building products for residential, light commercial and commercial applications. The company offers a variety of products, such as range hoods, bath fans, indoor air quality systems, medicine cabinets and central vacuums. Its product line also includes air conditioners, heat pumps and residential gate and door operating systems. Nortek Incorporated additionally provides exhaust fans, mailboxes, key keepers, and several wireless security and remote control products. The company serves the new construction and remodeling markets, as well as individual contractors and wholesalers worldwide. It offers residential ventilation and home technology products through various subsidiaries, such as Broan-NuTone, Venmar Ventilation, Aigis Mechtronics, HomeLogic and Imerge Limited. Nortek Incorporated is a subsidiary of NTK Holdings.