How to Clean an Indoor Air Duct

Beginner 15 min 16 steps 17248 views Rating: 4.2/5 Published: 2026-05-11

Locate the air ducts in your home.. Look underneath the ducts.. Set up a stable surface to stand on if your vent is high.

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Steps

1

Locate the air ducts in your home.

Step 1

Locate the air ducts in your home.

2

Look underneath the ducts.

Step 2

Look underneath the ducts.

3

Set up a stable surface to stand on if your vent is high.

Step 3

Set up a stable surface to stand on if your vent is high.

4

Cover the supply registers with paper towels.

Step 4

Cover the supply registers with paper towels.

5

Turn on a fan in the room you're starting with.

Step 5

Turn on a fan in the room you're starting with.

6

Check the filter.

Step 6

Check the filter.

7

Loosen up the dust in the air ducts.

Step 7

Loosen up the dust in the air ducts.

8

Go back and clean the supply registers.

Step 8

Go back and clean the supply registers.

9

Sweep out the air return registers.

Step 9

Sweep out the air return registers.

10

Turn off the fan and furnace.

Step 10

Turn off the fan and furnace.

11

Vacuum the dust in the blower department and return air boot.

Step 11

Vacuum the dust in the blower department and return air boot.

12

Replace the furnace filter.

Step 12

Replace the furnace filter.

13

Take the caps off of the rectangular duct work.

Step 13

Take the caps off of the rectangular duct work.

14

Vacuum out the dust.

Step 14

Vacuum out the dust.

15

Remove the inside basement registers.

Step 15

Remove the inside basement registers.

16

Call in a professional.

Step 16

Call in a professional.

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