Word of warning: Do NOT use a vacuum to pick up loose powder, or vacuum a rug onto which powder has spilled.
There may be sparks created inside the vacuum, or sparks may be created by static electricity or metallic objects (pins, needles, bobby pins, steel BBs, etc.) striking metal inside the vacuum.
Usually, the vacuum goes "whoosh" and then catches fire, or smoke billows out.
If you MUST use a vacuum, be ready to pull the vacuum's cord and haul it outside in a hurry. A standby fire extinguisher, rated for electrical appliances, is suggested.