Intro: Reverse Airflow Nozzle for an Air Compressor
So after watching a video on how to clean your dryer air vent I went in search of an attachment for the end of my air compressor. A reverse airflow attachment that connects to the end of your air compressor hose. You push it into your dryer vent from the outside, turn on the air, and as you pull the hose out it breaks loose the lint and dust that has accumulated.
The only places that seem to have them are professional duct cleaning suppliers. They of course want to sell you a complete duct cleaning system for several thousand dollars, but I figured I could do it for much less. I found an aluminum version for a much bigger compressor than I have, but used that to give me an idea of how to make my version.
Step 1: Drill a 1/2" Hole
I bought a pack of 6 foosballs from a sporting goods store, and using a drill press and a clamp I put a 1/2 inch hole down the center of one of them, making sure not to come out the bottom. Then I cleaned out the hole and smoothed the edges a bit.
Step 2: Drill Reverse Air Holes
Then using the smallest drill bit I had on hand, I couldn't read it but it was probably about 1/16th of an inch (roughly the thickness of a paperclip), I drilled 4 holes at about a 45 degree angle from the main hole. I may make it 5 or 6 holes if I make more of these.
Step 3: Attach Air Compressor Hardware
Once you attach a threaded barrel, which is lighter, or a quick release as I have in the first picture, you are ready to go. It's a good idea to have a valve between the hose and the air compressor so you can control the flow if your compressor doesn't come with one. Stick it into the vent as far as it will go, turn on the air and slowly pull it back out. Repeat as needed.