The Vornado AC350 Whole Room Air Purifier uses true HEPA filtration to remove up to 99.97% of airborne allergens down to 0.3 micron in size, trapping dust, pollen, pet dander, smoke, bacteria, mould spores, dust mites and more. True HEPA filter captures 99.97% of contaminants Activated carbon pre-filter captures odours Whole room air purification – up to 20m² 3-speed settings Filter change indicator Electronic push button controls Compact size fits easily in most spaces Featuring 3 speeds, push button electronic controls and filter replacement indicator, the Vornado AC350 Whole Room Air Purifier is the only air purifier you will ever need. Carbon filter adsorbs odours and traps larger particles. The AC350 Air Purifier utilises Vornado’s signature Vortex Action to actively circulate and filter all the air in the room. Without powerful circulation, the air cleaner is only cleaning the immediate area around the unit. Instead, the AC350 uses a radial blower to intake and clean all the air in the room. Precision engineering allows the blower to operate quietly, despite its powerful air flow. Great for small rooms The Vornado AC350 Air Purifier is recommended for a room size up to 20m² to ensure effective air purification. The smaller the room, the more often the air is circulated through the unit, as it’s able to bounce air off walls and back through more frequently. To break it down even further, in a room the size of 20m², the AC350 is cleaning the air every 11 minutes for pollen, 12.5 minutes for dust and 15 minutes for smoke.