Vacuum Cleaner- an electrical apparatus that by means of suction collects dust and small particles from floors and other surfaces.

Floor Buffer- is a floor cleaning device. It can be a simple tool such as a floor mop or floor brush, or in the form of a walk-behind or a ride-on machine to clean larger areas by injecting water with cleaning solution, scrubbing, and lifting the residue off the floor.

Equipment- the necessary items for a particular purpose.

Management- the process of dealing with or controlling things or people.

Maintemance- the process of maintaining or preserving someone or something, or the state of being maintained.

Explanation:

loor buffer - an electrical appliance that is used to clean and maintain non-carpeted floors, such as hardwood, marble, tile or linoleum. It is also known as a floor polisher or floor burnisher. I

Equipment- the process of supplying someone or something with items necessary for a particular purpose.

Management - the process of designing and maintaining an environment in which individuals, working together in groups, efficiently accomplish selected aims.

Maintenance - an act or process of preserving a tool or equipment. It is working on something to keep it in a functioning and safe state and preserving it from failure.