Air pollution is considered to be one of the leading environmental risks today.  Traditionally the way we have addressed this problem is by eliminating the cause of the pollutants and to incorporate good ventilation in our homes with clean outdoor air.  Sometimes, however, these methods are insufficient because of weather conditions, or inability to address the cause or risks inherent in the outdoor air (e.g. any contaminants that may be present outside for whatever reason).  In these instances … [Read more...]