How often should you actually clean dust out of your PC in Delhi?
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Every 6 to 8 weeks for the front filter, every 3 to 4 months for a full internal clean. That's roughly twice as often as most global guides recommend, because Delhi's air carries a lot more fine particulate than the cities those guides were written for.
| What | How often | Why |
|---|---|---|
| Front / intake dust filters | Every 6–8 weeks | First line of defence, and the fastest to visibly clog |
| Full internal clean (fans, heatsink, GPU) | Every 3–4 months | Dust that gets past the filter settles here and traps heat |
| Winter months (Oct–Feb) | Shorten both intervals by a third | Delhi's worst pollution spikes fall in this window |
Is Delhi's air actually worse for a PC than other cities?
Yes, measurably. According to aqi.in's own 2026 tracking, none of the days recorded so far this year in Delhi have fallen within the WHO's safe air quality limits. That's not smog on a bad week, that's the year-round baseline. A dust filter designed around a moderate-pollution city gets pushed a lot harder here than the manufacturer likely tested for.
What actually happens if you don't clean it?
Dust is an insulator. A thin layer on a heatsink or fan blade doesn't just look bad, it traps heat that would otherwise leave the case, which pushes your CPU and GPU to run hotter and throttle sooner under load. We've had customers bring in machines convinced their GPU had failed, when the real problem was a fan so caked in dust it had nearly stopped spinning.
It compounds too. A slightly dusty fan spins a little slower, which lets more dust settle on the heatsink underneath it, which raises temperatures a little more, which makes the fan work harder and wear out faster. None of this happens overnight, which is exactly why it catches people off guard: the PC that felt fine in July can be thermal throttling by December without a single new part failing.
How to actually clean it without breaking anything
Unplug the PC first, always. Take the side panel off and use a can of compressed air in short bursts rather than one long spray, working from the top of the case down so loosened dust falls out rather than resettling on components below. Pay the most attention to the GPU fan shroud, the CPU cooler fins, and the power supply intake, since these three trap the most dust and matter most for temperatures. The removable front filter, if your case has one, usually slides or clips out for a quick rinse under a tap and an air-dry before it goes back in.
From the floor
Kavya sees this pattern at the counter every winter without fail: a machine that ran fine all year suddenly starts thermal throttling in November or December, right when Delhi's air quality is at its worst. Nine times out of ten, popping the side panel and blowing out the dust fixes it completely, no new parts needed.
FAQ
What's the easiest way to actually clean the dust out?
A can of compressed air, used outdoors or near an open window so the dust doesn't just resettle in the room, works on the fans, heatsink fins and the removable front filter. Hold each fan's blades still with a finger while you spray so they don't spin freely and generate a small voltage they weren't built to handle, then wipe down the case exterior afterward.
Can I use a household vacuum cleaner instead?
Not directly on the components inside the case. Household vacuums can build up static electricity as air moves through them, and that static risks damaging your motherboard, RAM or graphics card if the nozzle gets close. They're perfectly fine for the floor and desk area around the PC, just not for pointing the nozzle inside an open case.
Does a mesh front panel actually help, or is it just for looks?
It genuinely helps airflow, but it also lets more dust through than a filtered panel unless it has its own removable filter behind the mesh. Check for that filter layer, not just the mesh itself, when you're choosing a cabinet. Our AeroCool Quantum Mesh keeps a filter layer behind the mesh for this reason, priced at ₹4,100 as of 14 Sept 2026.
Will an air purifier in the room actually help my PC?
Yes, more than most people expect. Cleaner air in the room means your intake fans are pulling in less particulate matter to begin with, which stretches out the time between both filter cleans and full internal cleans. It won't eliminate the need to clean the PC entirely, since some dust always finds a way in, but it noticeably slows how fast it builds up.
How do I know if dust is actually the problem and not something else?
Check your CPU and GPU temperatures under load using free monitoring software while running a game or benchmark you know well. If idle and load temperatures have crept up gradually over several months with nothing else about your setup changed, dust buildup restricting airflow is the most common and cheapest thing to rule out first, well before assuming a component is failing.
Bring your PC in and we'll open it up, clean it properly, and check your temperatures while you wait.
Related: Why is my SSD suddenly slow after a Windows update? · How much PSU wattage do you actually need? · Will undervolting my GPU lower FPS?
Kavya Mishra handles walk-in customers and every RMA that comes back through the counter at Get Right PC. Published 14 September 2026.
