Understanding Dust Accumulation on Ceiling Fans

What is the primary source of dust in our homes?

• Dust mites

• Pet fur

• Dead human skin and hair cells

• Outdoor pollution

How do dust particles become attracted to plastic fan blades?

• Because of magnetic fields

• Through gravitational pull

• Due to static electricity

• Via air pressure differences

Why do metal fans also accumulate dust despite not generating static electricity?

• Due to fluid dynamics

• Because of their color

• Due to their shape

• Because they are heavier

What happens to the air speed at the surface of a fan blade?

• It is very high

• It is zero

• It fluctuates rapidly

• It is moderate

How does the speed of a fan affect dust accumulation?

• Faster fans collect more dust

• Faster fans collect less dust

• Slower fans repel dust

• Fan speed has no effect