The Dyson Pure Cool Desk is an air purifier and fan in one. So you can use it all year round for clean indoor air and switch on the fan function for pleasant cooling on hot days. The device detects pollutants in the air in real time and adjusts performance accordingly. The cleaned air is distributed evenly throughout the room. In addition, the air purifier transmits the collected data to the Dyson Link App, which is available from the Google Play Store and the Apple App Store. With the app you can see the air quality outside as well as in your home. You can also view a report on the cleanliness of the air and remotely control the air purifier. In addition to the clean air, this model also provides a welcome cooling in summer. The air circulation generated by the fan function allows sweat to evaporate more quickly on the skin. This removes excess heat from your body and keeps you cool even on hot days. In night mode, the air purifier constantly monitors the quality of the room air and reacts to changes. In order not to disturb or even wake you while you sleep, the device uses very low-noise settings. So you can sleep peacefully and with ideal air quality. The HEPA filter is a highly effective filter consisting of numerous interwoven fibres. The filter cleans the air of even the smallest particles such as bacteria and viruses. This eliminates potential pathogens and other harmful substances and improves air quality in your home. Depending on where and for how long you operate your air purifier, the filter should be replaced approximately every six to twelve months so that you always have full cleaning power available. With the remote control you can switch the air purifier on and off conveniently from anywhere in the room. You can also adjust the power and other settings without having to go to the unit.