What this video covers
The clip runs through removing a ceiling spot properly rather than just wiping it.
Containment comes first, using plastic sheeting, because working overhead drops spores directly into the room and onto you. Then vinegar or peroxide with a stiff brush, with the dwell time doing the work.
The takeaway
Overhead work needs containment and eye protection more than any other position. Everything you disturb comes straight back down.
Read the full written guide: How to Remove Mold from a Bathroom Ceiling.