As far as I know, they are almost the same except for the color , the accessory, and the price.
DC39 animal is in PURPLE while DC39 is in YELLOW.
And the DC39 animal comes with a mini turbine head for picking up pet hair from tight areas while DC39 doesn’t have this tool. And DC39 Animal is more expensive than DC39 Multi Floor canister vacuum.
Otherwise, they are the same.
Contact Dyson customer service to confirm this if you want.
You can compare Dyson DC39 and DC39 animal with the following comparison chart and find the difference between them.
|Dyson DC39 Multi Floor vs Animal|
|Vacuum:||DC39 Multi Floor Vacuum Cleaner||Dyson DC39 Animal Vacuum Cleaner|
|Movement type:||Ball Technology||Ball Technology|
|Warranty:||5 Year Warranty- parts and labor||5 Year Warranty- parts and labor|
|Specifications and Features:|
|Brushbar control type:||Controlled at the handle.||Controlled at the handle. No bending down required.|
|Weight:||22.9 pounds||22.9 pounds|
|Product Dimensions(H x D x W):||14.2 x 10.2 x 19.5 inches||14.2 x 10.2 x 19.5 inches|
|Tools / Accessories:||Stair tool; Combination accessory tool; Triggerhead floor tool||Stair tool; Combination accessory tool; Mini turbine head; Triggerhead floor tool|
|Power Cord Length:||21.3 ft||21.3 ft|
|Power Rating:||275 Air Watts||275 Air Watts|
|Filter:||HEPA filter||HEPA filter|
|Bin Capacity:||0.53 gallons||0.53 gallons|