This Panasonic Reverse Cycle Split System CS/CU-Z25XKR is more than just an air conditioner with a filter. Keeping your home cool in summer and warm in winter this product suits rooms up to approx. 28m2, and includes WiFi built in with 24hr 2-way active air Purification which is approved by the National Asthma Council of Australia. With Panasonic's NANOE-X Air Purification technology it's more than just an air filter. NANOE-X is an active air purifier that removes 99% of viruses, bacteria, allergens & mould, hydrating and deodorising rooms even when in standby mode so the air at home is being constantly being cleaned, both in the room and inside the air con by onboard filtration technology. AEROWINGS ensure maximum comfort from fast cooling/heating for quick relief in hot or cold rooms, then AEROWINGS will automatically adjust to Shower Cooling redirecting airflow direction to maintain comfort levels with no breeze. Built in Wi-Fi means there's no need for an additional WiFi device to be installed, just connect to the home network and control the air con from anywhere via a smartphone app or through voice control with Google Assistant or Amazon Alexa. It's also an ultra compact size as the indoor head unit is only 779mm wide, so it takes up much less space in the room than other air cons.