The Air Purifier WHIRLS IV is not limited by installation space, allowing usage in vari-ous conditions thanks to its slim design. The opening has been adapted to the outlet, preventing dust from piling in the inside when the machine is not being used, and using a PM 2.5 sensor, its fine dust sensitivity has been enhanced. Also, sterilization is possi-ble due to the Cluster Ion generator and diverse services such as remote control through WiFi is offered.