4 3 out of 5 stars 284.
Vacuum air conditioner vents.
Turn off the power connected to the heating and air conditioning system.
After about ten minutes turn your a c off open all the car doors and let the fan blow for another five minutes.
Start the engine and set the air conditioner to max.
I only do this for the vents where the air blows out.
Use your brush to clean the grates thoroughly.
Let the grilles dry completely.
Then stick the flexible tubing of your vacuum cleaner down a bit into the vent and turn on the vacuum.
Unscrew the air duct covers or grilles from the walls.
Set both the air conditioner and fan blower to max.
If they re very dusty and grimy you may want to use soap and water to make them gleam.
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Dryer vent cleaner kit vacuum attachment and dryer vent brush.
Consider renting a heavy duty vacuum for this.
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Then go to the thermostat and turn on the fan only and let the vacuum run for a few minutes.
Unscrew air conditioner vent grilles and give them a good thorough cleaning using warm soapy water and a soft bristled brush.
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That does a great job and you can do it with or without the brush.
This dryer lint brush vent trap cleaner tool makes cleaning your lint trap and dryer vent a breeze.
Vacuum the ducts as much as possible.
When done put a fresh filter in.