Air purifiers are much used in hospitals, airports and in residence. It will create a dust free environment. In IQAir Air Purifiers series, both the IQAir HealthPro Air Purifier and HealthPro Plus Air Purifier uses HyperHEPA technology for purifying the air. Normally the air contains harmful chemical substances which are hazardous to health. Inorder to overcome the health hazards, the air purifiers of good variety and quality is used. HEPA technique is based on filter type removal of dust particles by size. Air is allowed to pass through the HEPA filter and the physically large substances are captured in the filter. It can effectively remove 99.97% of 0.3 micro meter particles in the air.