This Haier tumble dryer uses heat pump technology to dry your clothes in the most efficient way. It heats the air using refrigerant instead of electricity, so it uses way less energy. Sensor Dry technology lets you choose from four levels of dryness. It then shuts off automatically when that level has been reached to protect your clothes. And Ion Air Fresh uses UV light to ionise the air inside the drum. It removes up to 99% of bacteria, pollen and odours, leaving your laundry feeling fresh and sanitised.Good to know- I-Refresh uses steam and warm air to give clothes a deep clean without the need for a full wash- The Hygiene function kills 99% of bacteria from clothes by drying at a high temperature - perfect for sensitive skin- Control your dryer, customise settings and manage cycles from your phone with the hOn app- The advanced triple filtration system captures fluff and protects the dryer from lint build-up