GRF Board meeting GRF directors invest in HVAC upgrade to help Rossmoor reopen more safely Up to $250,000 will be spent on modifications to GRF buildings’ HVAC systems to help limit the indoor spread of COVID-19. System upgrades for air purification would be made throughout Rossmoor, from the Fitness Center and Gateway to Hillside, Creekside, the Event Center, and more. “The recommendation