SFGTV2 November 18, 2012
Replace them every three months, it is a big concern, how do we reduce our exposure when were a block right off the freeway, were bumper to bump traffic, and there are some fire houses that are literally underneath the freeway so how do we reduce that exposure, air filters, if so, what kind of air filters . Youre getting beyond our Technical Knowledge of our filtration, but you know, it might be somebody to consult with somebody with expertise in air filtration for indoor air of course, maybe replacing those filters more often, you know, some very basic things and again, im not an engineer, bu...