Ductless fan assembly

Abstract

A ductless ventilation system for removing air from a living space, treating the air, and discharging the air back into the living space. The ductless ventilation system includes a fan housing defining an internal space, a blower arranged within the internal space, and a filter system including a plurality of filters each being selected to condition the air in a different way from one another.

1 . A ductless ventilation system for removing air from a living space, treating the air, and discharging the air back into the living space, comprising
 a fan housing defining an internal space,   a blower arranged within the internal space, and   a filter system including a plurality of filters each being selected to condition the air in a different way from one another.   
     
     
         2 . The ductless ventilation system of  claim 1 , wherein the internal space is divided into a plurality of sub-regions to house one or more of the plurality of filters and at least one of the plurality of filters is selectively isolated from the air such that the air does not pass therethrough. 
     
     
         3 . The ductless ventilation system of  claim 2 , further comprising a shutter configured to isolate the at least one of the plurality of filters from the air and a control system configured to selectively open and close the shutter in response to types or amounts of contaminants in the air.