Dust Coming From Car Air Vents

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Dust coming from car air vents.

Fog or smoke coming out the air vents is caused by cold dry air coming in contact with warmer more moist air near the air conditioner. Its like a mini radiator the blower blows air through the evaporator which cools it then it comes out the vents. The evaporator is made of tubes covered with aluminum fins. The dust normally has a grit to it rather than normal dust you d find around the house.

Cleaning the vent grills and vacuuming inside your vent can remove the dirt and debris that. Inlet air brings along contaminants like dirt pollen plant and animal debris some of which is deposited on the wet fins and in the pan. However on friday i started the engine and a substantial and continuous amount of powder was emitted. It is not coming from outside the car or the cabin air filter would stop it.

I thought it was just dust. Your a c evaporator is the source of this white powder. Additionally if a system spends much time in recirculation mode it also gathers matter like pet hair and nicotine and tars from cigarette smoke. The dust can also be found in the air conditioning vents tucked up against the windshield and on the front of the passenger window trim.

I took it to a toyota dealer who replaced the pollen filter. This dust is being made in your car. If the air temperature near the unit is below dew point this causes water vapor to form in the air and condense into water droplets causing the fog or smoke. Now the white dust could be aluminum oxide or aluminum rust as the fins break down.

There is coating on it to prevent mildew that is the cause of your dust. Dust is blowing out of my heating vents clean your heating vents. The odorless steam coming from the vent is possibly excess water accumulating in the heater box which may indicate the drain hole is restricted and needing cleaned he says. Sign in to reply davejm on may 14 2018.

White dust on the dash the dust is a direct result of the air conditioning s evaporator flaking off small pieces. Many times dust and debris can be coming into your home from the attic through the.