• Indoor air quality (IAQ) is a major concern as people spend about 90% of time in indoor environments, where concentrations of many pollutants are frequently higher (up to five times) than in outdoor urban air.
• There is need for air filter with wide range applicability in indoor environments like residential, commercial, institutional and industrial localities that can bring down the pollutant concentrations and to provide healthy air to the people.

The invention discloses an air purifying device for purifying contaminated air within a space comprising:

1. a cylindrical body with perforation
2. a filter with sorbent media placed within the cylindrical body
3. centrifugal fan for suction of air
4. a deviator plate uniformly distribute purified air through the space

• Body and sleeve are configured to be displaced with reference to each other where the body comprises perforations  that open to allow the inflow of contaminated air into the air purifier through the perforations  in the outer sleeve
• The opening and closing of the perforations is accomplished by a motorized arrangement
• The centrifugal fan is configured to draw air into the cylindrical body, through a filter and centrifugally expel the air in all directions, i.e. 360° about the axis of the body, through outlets .
• A control unit is configured to control the speed of the fan motor and to open/close the perforations.
• Air expelled from the outlets is deflected by a deviator plate which is conformed in truncated conical shape to cause uniform distribution of purified air through the space
• Further includes a germicidal irradiation unit, to irradiate any bio particulates entering the interior of the cylindrical body