Designed in Sweden for expert removal of airborne allergens. Unlike a standard fan, Pure Fan Auto cleans the air of pollutants as it cools. Customizable to fit your needs, the fan features a colorful fabric pre-filter and Auto mode setting to auto-adjust to your real-time room conditions. Pure Fan Auto delivers more clean air than Dyson purifying fans¹ and removes over 99%² of airborne allergens like dust and pollen with Blueair's signature HEPASilent™ filtration technology. The unique combination of electrostatic and mechanical filtration effectively removes airborne allergens like dust, pollen, and pet dander with low noise and energy consumption. The fan works by pulling in dirty room air from the back through a pre-filter and particle filter using patented fan technology to deliver a gentle stream of clean, cooling air back into your room. Provides cool comfort by distributing air into the room at a 90-degree angle, so there's no need for oscillation. Upgraded features from the original Pure Fan offer simple air quality management. Set to Auto mode, the fan will automatically increase speed when particle pollution levels rise in your indoor environment and return to a lower rate once the air is clean. The air quality indicator (AQI) located on the top left of the fan keeps you up to date on the current status of your air. The LED displays one of three colors to indicate that room conditions are good, moderate, or polluted based on real-time measurements of fine particle (PM2.5) concentrations. Customize to your space with unique machine-washable fabric pre-filters available in five colors. Designed to catch larger particles to extend the primary filter's life, pre-filters in Arctic Trail and Night Waves come standard with the Pure Fan Auto. ENERGY STAR® certified for energy efficiency, Pure Fan Auto uses less energy than a light bulb.³ The fan utilizes HEPASilent™ filtration technology to clean the air as it cools with noise levels quieter than a whisper on low (25 dB) and less noise than a normal conversation on high (54 dB).⁴ Minimalist features are a breath of fresh air. Use the fan's two buttons to turn on/off, cycle through three-speed settings, set Auto and Night mode. Plus, the filter indicator light alerts you when it's time to replace the filter. Filter replacement is recommended about every six months. The Pure Fan Auto fits in well on a tabletop or directly on the floor in any area of your home. The balanced design is light enough to move easily, yet the low center of gravity makes it difficult to knock over. As an added benefit, unlike standard fans that use blades that get covered with dust and require disassembly to clean, Pure Fan Auto captures airborne dust before it has a chance to stick to the fan blades, using pre-filters that can be cleaned with a quick vacuum. At Blueair, our Swedish heritage inspires sustainability and quality at the heart of everything we do. Like our air purifiers, Pure Fan Auto is AHAM Verifide for Clean Air Delivery Rate (CADR), certified by ENERGY STAR for energy efficiency, and certified by the California EPA Air Resources Board (CARB) for safe ozone emissions. ¹ Comparing dust and pollen CADR (AHAM AC-1) on high to Dyson purifying fans (TP01, TP02, TP04, HP01, HP04, DP04) ² Based on third-party testing of removal rate of particles, pollen particles (5-11µm) in less than 20 minutes and dust particles (0.5-3µm) in 30 minutes according to AHAM AC-1-2019 standard. ³ On lowest speed, according to GB/T18801-2015 standard. "Light bulb" is defined as an LED light bulb with 40 W energy consumption. ⁴ Sound pressure according to GB/T18801. A whisper is about 30 dB; normal conversation is about 60 dB.