# How to clean dust out of laptop vents without opening it

Source: https://forum.geekwithlaptop.com/thread/how-to-clean-dust-out-of-laptop-vents-without-opening-it/
Site: Geek With Laptop Forum, category Repairs and care
Published: 2026-11-13. Updated: 2026-11-13. Replies: 1.

## Question by Tyler B., 2026-11-13

My gaming laptop is about eighteen months old and lately the fans spin up to full speed within a minute of launching anything, and the air blowing out the side is noticeably hotter than it used to be. I have a pretty good idea it is dust, because I game on a bed and the pet hair situation is not great. I can see grey fluff in the slots on the bottom and the back.

The warranty sticker is still on the bottom and I do not want to unscrew the case and risk voiding it, plus I have never taken a laptop apart. So I would like to clean the vents from the outside only. I was going to use the vacuum cleaner on the vent slots, or maybe a can of compressed air, or both.

What is the actual safe way to do this? What should I definitely not do? And how do I know whether this has done anything, or whether the fans are loud for another reason?

## Reply 1 by Raul M., 2026-11-13

Quick sanity check before you clean anything: how are the temperatures? If you have not looked, install a monitoring tool and note the numbers idle and under load, so you can compare after. There is a thread here on [checking your laptop's CPU temperature](/thread/how-do-i-check-my-laptops-cpu-temperature-and-what-is-too-hot/) that tells you what is normal.

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Cite as: Geek With Laptop Forum, "How to clean dust out of laptop vents without opening it", https://forum.geekwithlaptop.com/thread/how-to-clean-dust-out-of-laptop-vents-without-opening-it/, accessed 2026-11-14.