Dyson PH04 Air Purifier, Humidifier Purifier + Cool Formaldehyde, WiFi, Bluetooth, 10 Speed Settings, HEPA H13 Filter, Dyson Link, Magnetic Remote Control, Silver A Cleaner, More Comfortable EnvironmentThe Dyson Humidifier Purifier is designed to help you improve your air quality. Its activated carbon filter neutralises gases, the HEPA H13 filter captures 99.95% of particles down to 0.1 microns and a catalytic filter destroys formaldehyde. Air Multiplier™ technology then projects purified and humidified air throughout the room - cooling you down when you need it. Useful tips on air humidificationThe Dyson Humidifier Purifier lets you achieve your desired humidity either automatically or manually. Set it to Auto mode and forget about the device. In Manual mode, the LCD screen indicates whether you need to increase the airflow - which can help you reach your goal faster. And don’t forget, keeping the product away from drafts and turning off your home heating or AC units can also improve performance. Sense and Report Technology, AutomaticallyThree sensors constantly monitor your air – diagnosing pollutants at the molecular level and displaying real-time air quality in reports. Captures gases and ultrafine particlesCaptures 99.95% of particles down to 0.1 microns. Combined with activated carbon, it also removes odors and gases, including VOCs. Destroys formaldehyde, continuously.A catalytic filter continuously captures and breaks down formaldehyde molecules into water and CO2. And never needs to be replaced. Accurately detects formaldehydeA lifetime solid-state sensor detects formaldehyde molecules – 500 times smaller than 0.1 microns. Destroys potentially harmful bacteriaDyson Ultraviolet Cleanse technology exposes every drop of water to powerful λ275nm UV light to humidify hygienically. Fully sealed to HEPA H13 standard5To prevent pollutants from leaking back into the air, it's not just the filter that's sealed to HEPA H13 standard, it's the entire humidifier and purifier. Features Circulates humidified and purified airDyson Air Multiplier™ technology combines and circulates purified and humidified air throughout the room. Keeps you coolIn warmer weather, a powerful stream of purified and humidified air can keep you cool. Real-time dataControl and monitor air quality from anywhere using the Dyson Link app. Auto modeConstantly monitors air quality, automatically adjusting airflow to achieve and maintain the most comfortable humidity level. Continuous humidificationAn efficient water management system and a 3.7l tank give you up to 36 hours* of hygienic humidification without regular refilling. Night Mode Purifies using the quietest settings and a dimmed display. The sleep timer allows preset intervals of use, from 15 minutes to 9 hours. Diffuse Mode Diverts airflow through the back of the product. To purify and humidify, without cooling you. Breeze Mode Unique algorithms vary the airflow to mimic a refreshing, cool breeze. Jet Axis Control Two oscillators guide the airflow – projecting separately or in unison, so you can choose different airflow patterns. Voice Control Control it hands-free with compatible voice services, including Amazon Alexa, Siri and Google Assistant. Deep Clean Cycle Activate the machine’s monthly deep clean cycle, hassle-free, with the touch of a button. It will guide you through the simple step-by-step process. Easy Filter Change Built-in notifications will show you when your filter needs to be changed. It’s quick and easy to do.