The patented Blueair Central Whole House Filter System offers a breakthrough in design and instantly converts a central heating or air conditioning system into a highly efficient, cost effective air purifier without the need for using an expensive, whole-house air purifier system costing thousands of dollars. The system combines the Blueair MX2 Particle Charger with the Blueair Custom Furnace Filter. The Blueair MX2 Particle Charger transfers a safe negative charge to airborne particles as small as .01 microns. The filter is made of millions of fibres, acting like super magnets attracting and capturing (the charged) airborne particles at a rate similar to the expensive systems. The patented Blueair Central Whole House Filter System captures over 99% of airborne contaminants like dust, pollen & dander in just minutes, as well as up to 99% of even the smallest particles including bacteria, viruses and mould spores.