Here are some easy and effective tips to clean a dusty fan without removing the frame or using much water:

1. Use a Microfiber Cloth: Gently wipe the blades and grills with a dry or slightly damp microfiber cloth. Microfiber traps dust well without spreading it around.

2. Use a Vacuum Cleaner with Brush Attachment: Carefully vacuum the fan blades and grills using a soft brush attachment to remove dust buildup without disassembling.

3. Compressed Air: Use a can of compressed air to blow dust off hard-to-reach areas like grills and motor housing.

4. Dusting Brush or Paintbrush: A soft-bristled brush can loosen dust on blades and grills. Brush gently to avoid damaging delicate parts.

5. Use a Pillowcase: Slip a pillowcase over the blades and grill, then wipe the outside of the pillowcase to trap dust inside.

6. Use Mild Cleaning Wipes: For stubborn dust, use gentle cleaning wipes designed for electronics to avoid moisture damage.

7. Regular Maintenance: Clean your fan regularly to prevent heavy dust buildup, making each cleaning easier.

These methods keep your fan clean and running efficiently without the hassle of full disassembly or heavy water use.