Why Your AC Is Blowing Dust

Dust from the vents means buildup on the blower and coil — the fan pushes it into the room.

AC blowing dust happens when the blower wheel and coil are coated with debris. Filters alone don’t remove existing internal buildup.

Contributors

  • Construction dust never cleaned from unit
  • Pets loading filters fast
  • Old window AC never serviced

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Frequently Asked Questions

Will HEPA filter fix it?

Only after the unit interior is cleaned — then maintain filters monthly.