Dust Coming Through Air Vents In Car

Coolant may also drip on the passenger side floor.

Dust coming through air vents in car.

The evaporator is made of tubes covered with aluminum fins. There is coating on it to prevent mildew that is the cause of your dust. Soak the bristles in a car cleaning solution and use the brush to clean the slats. I thought it was just dust.

Your a c evaporator is the source of this white powder. It is not coming from outside the car or the cabin air filter would stop it. But we recently found something that seems to be more effective. Its like a mini radiator the blower blows air through the evaporator which cools it then it comes out the vents.

Additionally if a system spends much time in recirculation mode it also gathers matter like pet hair and nicotine and tars from cigarette smoke. They contain a microfiber filter that catches dust pollens and other allergens. They re washable and reusable and i seem to remember they cost about 3 50 each. If the evaporator core has a small pinhole it may spray a fine mist of refrigerant from the vents.

The blower takes these bits of debris and pushes them through the vents into the cabin. Pressurized or canned air can also help get your vents clean. A toothbrush has the bonus of a nice long handle so you can reach down into the vent and grab even more dirt. If there s a small pinhole which is a small leak typically caused by corrosion in the heater core drivers may have steam coming from the vents but it will likely smell of coolant.

We have a 2007 camry se where there is a white dust being emitted from the ac heater vents. The protective coating on the evaporator flakes off the evaporator s aluminum corrodes etc. This dust is being made in your car. A toothbrush is another great tool for cleaning the air vents in your car.

It is a considerable amount where you actually can see it build up on the dash. I m concerned with this since my wife and kids drive the car everyday. I called toyota and the rep said it is just oxidation build up and is not harmful. The dust is a direct result of the air conditioning s evaporator flaking off small pieces.

Now the white dust could be aluminum oxide or aluminum rust as the fins break down. Carspec s heard multiple explanations as to why the evaporator does this. Over the last few months i ve noticed a very small amount of white power like substance coming out of my cabin air vents. I took it to a toyota dealer who replaced the pollen filter.

There is coating on it to prevent mildew that is the cause of your dust.