The listings span a wide range of capacities, from small personal units at about 1,200 BTU up through common portable and mini‑split sizes such as 9,000, 14,000 and 18,000 BTU.
Coverage varies: some personal evaporative coolers list under 100 sq ft; many 9,000–14,000 BTU portable or mini‑split units are listed for roughly 300–900 sq ft; and larger mini‑splits are shown covering up to about 1,200–1,250 sq ft.
Permanent split systems are described as multi‑part units that require professional installation and typically list installation components (indoor and outdoor units, pre‑charged tubing or copper line sets, drain hoses, communication wires). Portable units emphasize mobility and easy setup, listing casters/handles and window vent kits or exhaust hoses.