The automatic purification system of the Philips AC2936 provides you with clean air easily and quickly. To do this, the air purifier has 4 settings. There is the auto mode, turbo mode, sleep mode, and gentle mode. Select your preference in the app, even when you're not at home. The air quality indicator shows you the status of the air quality in your home by means of colors. The air purifier also indicates when it's time to replace the 3-layer filter. Handy, because that way you're always ensured of efficient cleaning. Thanks to the compact size and automatic ambient lighting, the purifier isn't distracting and you can easily place it on your nightstand. Place the air purifier in a room of up to 85m² for the best results.