9000 BTU 3-in-1 Portable Air Conditioner with Sleep Mode

This Costway 9000 BTU portable air conditioner is a tidy three-in-one for everyday UK summers, pairing cooling with dehumidifier and fan modes plus a smart sleep mode and 1-24 hour timer. The 9000 BTU output suits small-to-medium rooms; using the ~600 BTU per m² rule it is ideal for bedrooms and offices of around 15 m². Drawing just 1005W, it costs roughly 26p per hour at 26p/kWh – among the cheaper portable air conditioners to run in this range. Noise sits at 51-55 dB, low enough that the sleep mode and timer make it genuinely usable overnight. As a single-hose monobloc it must vent through a window using the supplied kit; there is no hoseless cooling, but two drainage options (continuous or tank) make managing condensate simple. Airflow is rated at 330 m³/h with a 650 ml tank, and control is via the LED touch panel or remote. In the box you get the exhaust hose, hose connector, adapter, window kit, drain hose, remote and manual. At 22 kg on a compact 31.5 x 31 x 70 cm body it slips easily between rooms, making it a flexible, affordable air con unit for the home.