Black Dust On Fan Blades

Why do some fans have this buildup and other s don t.

Black dust on fan blades.

It may alternatively be due to soot produced from candles. If the register is closed the air is forced along the ceiling and the next thing you know you ll start to see black buildup across your ceiling. Next you re going to make sure that each blade is dry. I suggest you use each paper towel until it gets dark and starts smearing dust or until you move on to the next fan blade whichever comes first.

Over time a large volume of the circulating air hits and collects on the blades of the fan. Additionally fan blades move rapidly through the air rubbing and brushing against air molecules and pushing them out of the way. The black dust may be due to deteriorating duct liner materials in your heater or air conditioner and in some cases your cold air returns. Most of the dust particles that are floating in your house has some sort of electric charge which can often cause dust molecules to attract together hence the dust bunnies underneath your bed.

This same thing happens to the leading edges of your ceiling fan blades. Stand on a step stool or ladder to reach the fan blades. People often ask why spider webs and dust can be seen on the fans. Once they re all dry apply your paste car wax.

Soot deposition is most likely to occur on wall and ceiling surfaces in rooms where candles are burnt. But they must understand that there is a lot of dust in the circulating air.