FREE SHIPPING TO USA & CANADA
BullseyeBlower

Bullseye Blower Resource

How to Clean a PC Without Compressed Air

Dust raises temperatures and fan noise. You can clean it out safely with a rechargeable blower instead of cans.

Free US & CA shipping90-day guarantee
Bullseye Blower cleaning blinds, sawdust, keyboards, snow, campfires and leaves

Step by step

  • Shut down, unplug and move the PC somewhere you don't mind dust
  • Open the side panel
  • Hold each fan still with a finger so it doesn't over-spin
  • Blow on low speed from the inside out, then filters and the PSU vent
  • Close it up and power on

Pro tips

  • Do it outside or in the garage
  • Clean every 3–6 months
  • Never let fans spin freely from blown air

Bullseye Blower price & bundles

Buying from the official store gets you the lowest bundle price, free shipping to the USA and Canada and a 90-day money-back guarantee.

  • Buy 1: $79.99 (regular $99.99), save 20%
  • Buy 2: $139.99 (regular $199.98), save 30%
  • Buy 3: $194.98 (regular $299.97), save 35%
  • Free shipping on every order, US & Canada
  • 90-day money-back guarantee

Tools you need

  • Cordless blower with narrow nozzle
  • Screwdriver to open the case
  • Something to hold fans still
  • Microfiber cloth

Troubleshooting

If the PC still runs hot after cleaning, check that all fans spin and that dust filters are clear. Heavy caked dust on heatsinks may need a soft brush before blowing.

Before you start

  • Shut down and unplug the PC
  • Move it outdoors or near an open window
  • Remove the side panel and dust filters
  • Wear eye protection

Mistakes to avoid

Don't let fans spin freely under airflow — hold them with a finger or a plastic tool. Don't touch components with the nozzle. Don't blow dust deeper into the case; work from front to back so dust exits the rear.

How often to clean

Every three to six months for most homes, more often with pets or carpet. Cleaning filters regularly means the inside stays cleaner for longer.

Frequently asked questions

How often should I clean my PC?

Every few months, or more often with pets or in dusty rooms.

Can blowing spin fans too fast?

Yes, so hold fans still while blowing.

Can a blower cause static damage?

Keep the nozzle off components and work on an unplugged PC. Moving air from a distance is the standard approach for dusting.

Should I clean the power supply?

Blow dust from its outside vents only. Never open a power supply.

Related