When I plop down on my seat, in certain sunlight angles I can see plumes of dust flying out from the cushion.

Is a regular vacuum enough to clean it up? Or should I do dry cleaning?

If the latter, what is an average price for car seat cleaning (no heavy stains)? And any recommended car seat cleaning places around Subang/Sunway area?

Thanks!

If you already own a vacuum cleaner, why not try it first? You do need a special nozzle that made for carpet use, easily available at online shopping.

Or get a wet vacuum cleaner or spot cleaner.

I dont have any of those items

It is not only the skin flakes and environmental dust that you see when you whack the seat.

When your car start to age, the inside foam also start to break down, and the flakes start "leaking" out

No amount of vacuuming will help, other than changing the foam.

just send to any car detailing with through cleaning.. but price a bit expensive compared to normal car wash.. should settle your problem..