HVAC Maintenance CPSC and NFPA Urge Furnace Inspections, Carbon Monoxide Checks Before First Cold Snap Federal safety officials are renewing seasonal guidance on furnace tune-ups and carbon monoxide detector checks as the first cold fronts approach and idle heating systems switch back on.
Indoor Air Quality Wildfire Smoke Is Back: The $40 Box Fan Filter That Outperforms Most Store-Bought Purifiers Wildfire smoke is drifting into US cities again this August. A $40 box fan and four furnace filters can clean a room's air better than purifiers costing five times as much.
