News Releases Search All News ReleasesView all news releases or search by topic, program, or year. Air Quality MonitoringHealthIndoor Air Quality & Exposure(-)ResearchSmokeAir Cleaners & Ozone Generating ProductsIn-Use Off-Road Diesel-Fueled Fleets RegulationIndoor Air(-)Indoor Air Cleaner Enforcement(-)2018 1 results found for Apr 20, 2018Study: High-efficiency filters slash indoor air pollution but not asthma symptoms Email UpdatesKeep up to date with the latest press releases and media advisories.SubscribeContact Office of Communications comms@arb.ca.gov