Application segmentation categorizes demand by functional environment: Passenger terminals, Cargo terminals, Airside operational facilities, Maintenance and hangar facilities, and Ground‑support equipment bays. Passenger terminals, with high passenger throughput and stringent comfort standards, generate the largest share—approximately 45% of total unit sales—driven by extensive HVAC networks across concourses, lounges, and boarding gates. Cargo terminals, requiring temperature control for perishable goods, account for 20% of the market, reflecting moderate unit density but higher specification levels. Airside operational facilities, including aprons and gate‑side shelters, represent 15% as they demand robust, weather‑resistant units. Maintenance and hangar facilities, tasked with equipment cooling and staff comfort, contribute 12%, while specialized ground‑support equipment bays, such as baggage‑handling zones, comprise the remaining 8%. This market taxonomy clarifies how each application segment underpins the overall market size and informs strategic allocation of R&D and sales resources.