3 Speed Evaporative Air Cooler with Sleep Mode and 3 Wind Mode

This Costway evaporative air cooler is a refrigerant-free, windowless alternative to air conditioning that triples as a cooler, humidifier and fan. Because it uses water evaporation rather than a compressor, it needs no installation and no exhaust hose – just add water and the included ice crystal boxes for an extra burst of cool. Running on a mere 60W, it costs barely over 1.5p per hour at 26p/kWh, making it one of the cheapest cooling options to run. At ≤44 dB it is genuinely quiet enough for a bedroom, and the three modes (normal, natural, sleep) plus three fan speeds and a 0-12 hour timer let you set it and forget it overnight. A 2.8L tank gives long sessions between refills, while 90° vertical and 60° horizontal oscillation spread air to every corner. Be aware of the honest limitation of evaporative cooling: it works best in dry heat and underperforms once humidity climbs above roughly 60-70%, so it is a comfort breeze rather than a temperature-slashing AC. The box includes the cooler, two ice crystal boxes, remote and manual. At just 4 kg it lifts easily between rooms.