Access each branch duct run from a vent opening. Use a vacuum with a crevice tool or a specialized duct brush to clean the interior of these smaller ducts. For supply vents, clean the registers and louvers thoroughly.
Step 5 · Clean Branch Ducts and Vents
Access each branch duct run from a vent opening. Use a vacuum with a crevice tool or a specialized duct brush to clean the interior of these smaller ducts. For supply vents, clean the registers and louvers thoroughly.