Dyson DC50 is a compact size bagless upright vacuum cleaner. It features 2 tiers of cyclones to trap more microscopic particles in the dust container. And its cleaner head has carbon fiber filaments which can clean hard floors gently.

There is small difference between Dyson DC50 Multi Floor, Multi Floor Plus and DC50 Animal. One is the color and one is the tools they include. Otherwise, they are the same.
1) The middle part of the Multi Floor versions is yellow while it’s purple on the Animal version.
2) Commonly, the Dyson’s animal version comes with a special tool for picking up pet hair. As usual, the DC50 Animal includes a Tangle-free Turbine tool which is

designed for picking up dirt and hair from carpets and upholstery, this tool is priced at $69.99 on dyson.com. The Multi Floor version does not comes with this tool.
The “Plus” version adds the following extra tools to the standard Multi-Floor: a multi angle brush, mattress tool, and stiff bristle brush.

Here’s a table to make it more clear for you, hope this helps.

Dyson DC50 Animal vs DC50 MultiFLoor vs DC50 MultiFLoor Plus

	Dyson DC50 Animal	Dyson DC50 MultiFloor	Dyson DC50 MultiFloor Plus
Images
Price	$449.99 at dyson.com on July 10, 2014
Color	Purple	Yellow	Yellow
Tools	Combination Tool Stair Tool Tangle-free Turbine tool	Combination Tool Stair Tool	Combination Tool Stair Tool Multi Angle Brush Mattress tool Stiff Bristle Tool
Same Specs:
	Compact size, dimensions are 30.1" x 11" x 13.9", weighs 11.6 lbs.
	Corded
	No Retractable Cord Manual rewind required
	Cord length is 24.9 feet
	Hose length is 8.5 feet
	6.5 amps
	128 airwatts suction power
	No suction control
	Bagless Bin size is 0.21 gallons.
	Equiped with Motorized Brushroll, and Brushroll On/Off
	about 11″ cleaning path
	Self-adjusting Cleaner Head No Manual Height Adjustments for Carpet/Rug cleaning
	Features HEPA filtration
	carries 5 year warranty on parts & labor.

If you have any other info or quesions about these Dyson DC50 versions to share or ask, please comment below, thank you.