Although this dust might look inconsequential is is a severe threat to your well being and good health.
Dust coming out of air vents.
Black dust coming from your air vents may cause many different health problems including difficulties with breathing throat irritation continuous sneezing and eye irritation.
Coolant may also drip on the passenger side floor.
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.
There is coating on it to prevent mildew that is the cause of your dust.
Pull out the air filter.
Sometimes the dust and debris originates from your ductwork and heating vents.
Clean your heating vents.
Dust is blowing out of my heating vents clean your heating vents.
Have a professional clean and seal your ducts seal your duct leaks using a mastic sealant or metal tape replace any ducts that are beyond repair if the holes or leaks are too severe thoroughly clean your ducts.
Depending on where they are the ducts could be pulling in dust from your attic or possibly the basement.
Cleaning the vent grills and vacuuming inside your vent can remove the dirt and debris that.
There is coating on it to prevent mildew that is the cause of your dust.
Open the furnace compartment.
Black dust surrounding air vents is a bad sign.
If after replacing the air filters with new filters you still notice the air returns are blowing in dust you should check the ductwork to be sure the ducting has not come apart or there is a leak at one of the duct seams.
Patch and seal your ductwork.
Its like a mini radiator the blower blows air through the evaporator which cools it then it comes out the vents.
Examine the return air registers for dust buildup particularly if there are thick fuzzy coatings of dust.
If the evaporator core has a small pinhole it may spray a fine mist of refrigerant from the vents.
Seal the gaps around the ductwork where it vents into the room and you should notice a big difference in your dust levels.
The black dust may be patchy and difficult to wipe off.
Black dust around air vents if you notice black dust around your air vents this could be a sign of black mold growing within.
Many times dust and debris can be coming into your home from the attic through the.
Here are some suggestions to help your air filtration and air quality.
This lets more dust settle and build up in the return ductwork.
Sealed ducts prevent dust my guess is that the problem is not dust coming through the ducts but coming in from around the ductwork and pulling dust into your living spaces from the attic.