TL;DR
Dust falls, so the only order that works is top to bottom, with the floor last. Cleaning a room in the wrong sequence means re-dusting up to half of it, because everything you knock off a high surface lands on the low ones. The tool matters less than the order and whether it captures dust instead of scattering it.
The rule behind the rule
Gravity does not care how good your cloth is. Anything you dislodge from a ceiling fan, a shelf top, or a door frame is going to land somewhere below it.
That gives you one non-negotiable principle: work from the highest surface in the room down to the lowest, and treat the floor as the collection tray for everything you missed. If you polish a coffee table and then dust the bookshelf above it, you have just undone the table.
What order should you dust a room in?
Start at the ceiling and work down: ceiling fans and light fixtures, then upper shelves and cabinet tops, then wall art and door frames, then furniture surfaces and electronics, then baseboards, then the floor. Vacuum or mop last, so the floor catches everything the earlier passes released.
The full sequence, step by step
1. Ventilate first, then let the room settle. Open a window if outdoor air is reasonable. Dust that goes airborne needs somewhere to go, and moving air helps carry some of it out.
2. Ceiling fans and light fixtures. These hold the heaviest single deposit in most rooms, and they are directly above everything else. Blades especially -- fine dust bonds to the leading edge. Dusting ceiling fans and light fixtures covers the technique for doing it without showering the bed.
3. Cabinet tops, high shelves, and crown molding. Anything above eye level. These get missed for months at a time, so the deposit is thick and often greasy in a kitchen.
4. Wall vents and returns. Grilles collect a felt of fine dust. Vacuum them with a brush attachment before you touch anything below.
5. Wall art, mirrors, and door frames. The top edge of a frame is a shelf. So is the top of a door.
6. Shelves, books, and display objects. Books shed paper fiber and hold dust between the top edges of pages. How to dust books and bookshelves has the method that does not damage bindings.
7. Furniture surfaces and electronics. Tables, dressers, nightstands, screens, and equipment. Electronics need care -- no ammonia and no alcohol on coated displays, and no liquid sprayed directly at a screen.
8. Upholstery and soft furnishings. Vacuum with the upholstery tool. Cushions release fiber and skin cells every time somebody sits down.
9. Baseboards, trim, and outlet covers. Low, flat, and constantly re-coated because dust ends up on the floor and gets kicked back up.
10. Floors last. Vacuum, then damp mop if the floor allows it. Everything that fell during steps two through nine is waiting here.
Capture, do not scatter
Order solves half the problem. The other half is whether your tool actually holds what it picks up.
A dry feather-style duster mostly relocates dust into the air, where it floats and lands again. A slightly damp microfiber cloth traps particles in the fiber and holds them until you rinse. An electrostatic cloth holds fine dust by charge. A vacuum with a brush attachment and a clean, well-seated filter removes dust from the room entirely.
The tradeoffs, and where damp is a bad idea, are in damp dusting versus dry dusting. Short version: damp for most hard surfaces, dry capture cloths for electronics and anything water-sensitive, and never damp on unsealed wood or paper.
Fold your cloth, and use every face
A cloth loaded with dust stops picking up and starts smearing. Fold a cloth into quarters and you get eight clean working faces. Rotate to a fresh face whenever the current one looks grey.
Rinse or swap cloths between rooms rather than carrying one room's load into the next. Wash microfiber without fabric softener -- softener coats the fibers and kills the grab.
Should you dust or vacuum first?
Dust first, vacuum second, always. Dusting sends particles down onto the floor, so vacuuming afterward removes them. Vacuuming first means you finish the room by dropping fresh dust on a floor you already cleaned.
There is one exception worth knowing, and it is covered in whether to dust before vacuuming: if a floor is heavily soiled with grit, a quick pass first keeps you from grinding it in while you move around the room. The real vacuum pass still comes last.
The last pass, and why it exists
After you finish the floor, fine particles that went airborne during the session are still coming down. That is why a room dusted in a hurry often looks lightly filmed an hour later.
The practical answer is not to chase it. Ventilate during and after the work so airborne particles have an exit, run the room fan or the HVAC fan afterward if the filter is clean, and accept that a light haze will settle. Wipe the two or three surfaces that show it most and move on.
A note on expectations
A dusting routine reduces the dust load in a room. It does not eliminate dust, dust mites, or allergens -- no cleaning routine does. If dust seems to bother someone in the household, that question belongs with a doctor rather than with a cleaning schedule.
FAQ
What order should you clean a room in?
Top to bottom, floor last. Start with ceiling fans and light fixtures, then high shelves and cabinet tops, then vents, wall art, and door frames, then furniture and electronics, then baseboards, then vacuum or mop. Anything you dislodge above lands below, so the floor is always the final catch.
Should I dust before or after vacuuming?
Dust first, vacuum after. Dusting pushes particles down onto the floor, and vacuuming last removes them. If you vacuum first, you finish the room by scattering fresh dust across a floor you already cleaned, which means doing it twice.
Is a damp cloth better than a dry duster?
For most hard surfaces, yes. A slightly damp microfiber cloth traps and holds particles, while a dry feather-style duster mostly launches them into the air to settle again. Keep dry capture cloths for electronics, screens, unsealed wood, paper, and anything water can damage.
How often should a room be dusted?
Most rooms do well with a weekly pass on visible and high-touch surfaces and a monthly deeper pass that includes high shelves, vents, baseboards, and behind furniture. Rooms with heavy fabric, pets, or a supply vent usually need the shorter interval.
Why does a room look dusty again an hour after cleaning?
Fine particles stirred up during cleaning can stay airborne for a long time and settle gradually afterward. Ventilating during and after the work gives them an exit. A light film settling afterward is normal and is not a sign the cleaning failed.
Do I need a special duster to do this properly?
No. A few microfiber cloths, a vacuum with a brush and crevice attachment, and an extension tool for high surfaces cover almost everything. What matters is that the tool holds dust rather than flinging it, and that you rotate to a clean cloth face before it starts to smear.
The right dusting routine depends on your ceiling heights, your fabric load, and how much traffic a room sees. If you would rather have the deep passes handled on a schedule, get a quote or read more about house cleaning services.