Here’s a practical, safe approach to cleaning a popcorn ceiling and what to watch out for. Direct answer

• Start with dusting and cobweb removal using gentle methods: a vacuum with a soft brush attachment, or a long-handled microfiber duster. Lightly work in small sections to avoid dislodging the texture.
• For surface dust and light dirt, you can use a lint roller or a damp microfiber cloth on a pole to pick up remaining particles. Avoid soaking the ceiling.
• For stains, use a mild, targeted approach:
  • Water stains or mildew: mix a small amount of household bleach with water (1 part bleach to 4 parts water), test on a hidden spot, lightly mist the stained area, and dab with a sponge. Do not saturate the ceiling and ensure good ventilation.
  • Smoke or grease stains: use a gentle solution of warm water with a small amount of mild dish soap, apply lightly with a sponge, and dab—not rub aggressively.
• If stains are stubborn or the ceiling is heavily stained, painting over the popcorn texture is a common long-term solution. This typically requires priming first and choosing a sheen that matches the room (often eggshell or matte for ceilings).

Precautions and best practices

• Do not vigorously scrub or saturate popcorn ceilings; excess moisture can cause the texture to deteriorate or sag.
• If the ceiling has been previously painted, test a small area first since painted popcorn textures can be damaged by moisture and cleaning can cause the paint to peel.
• Wear eye protection and a mask to avoid inhaling dust, especially when dusting or using cleaning solutions.
• Work from a stable ladder, with a helper if possible, and ensure the area below is protected with a drop cloth.

What to avoid

• Bleach solutions on untested, untreated popcorn ceilings can discolor or deteriorate the texture; always test first and use the minimum effective amount.
• Harsh solvents, abrasive pads, or high-pressure sprays, which can tear apart the acoustic texture.
• Excessive moisture or soaking any portion of the ceiling, which can lead to sagging or mold growth.

If you’d like, share a bit more about your ceiling (unpainted vs painted, any visible water damage, and the room type). That will help tailor the steps and products to use, including a paint-based restoration option if cleaning isn’t sufficient.