[et_pb_section fb_built=”1″ _builder_version=”3.0.47″][et_pb_row _builder_version=”3.0.48″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″ _builder_version=”3.0.47″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.6″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”] It’s harder to breathe easy these days.  You may think indoor air quality is an issue only in developing countries, where particulate matter from the burning of biomass such as wood or charcoal was estimated to result in 1.5 to 2 million deaths in […]