Carrier is a heating, cooling, and refrigeration brand serving residential, commercial, and cold-chain markets. For homeowners, it offers air conditioners, heat pumps, furnaces, ductless and packaged systems, air handlers, boilers, and indoor air quality products such as purifiers, humidifiers, ventilators, dehumidifiers, and air monitors. Smart thermostats and other connected technologies are also part of its residential offering.

Carrier supports commercial buildings with HVAC equipment, controls, building automation, system design tools, and solutions for sectors including healthcare, education, hospitality, and data centers. Its cold-chain business provides truck, trailer, container, intermodal, and rail refrigeration equipment, along with parts, monitoring, and digital fleet platforms.

The company also connects customers with local dealers and contractors who can provide service and repairs, new system installations, and price estimates. Depending on the offering, support may include warranties, service agreements, technical resources, financing, rebates, and training. Carrier describes its work as focused on delivering technologies for people, communities, and the planet, with sustainability initiatives spanning cities, cold chains, and operations.