Covers up to 1200 Sq ft area with its washable pre-filter that catches large particles and pollutants with its twin HEPA filter. The model C’s Negative ion generator output up to 3 million/CC to neutralize floating dust pollen smoke and any particles. Suitable for bedrooms offices clubs and hotels this models is extremely convenient with its remote control and a 1 2 4 and 8 hour timer. Small enough to sit on your desktop. Two fan speeds for dust collection power and an ESP function to grab all the particles the HEPA filters miss. With an independent Ozone function this model puts out 400mg/hr of ozone enough to fill a 1200sq ft area. An optional air pump accessory outputs ozone via diffuser stone and silicon Rubber tube for water purification purposes.