The ORIGINAL electrolux (now referred to Aerus Electrolux), the best & only vacuum one would ever need.
Don't be fooled by the cheap $500-$600 models in the store, this brand of Electrolux is NOT the original Electrolux name our parents grew up with, and is manufactured by Eureka and other brands, garbage.
If you own pets, have allergies, or live in a home over 1300 sq feet, the 9000 series Electrolux canister vacuum should be on your list to check out. Yes, it is expensive, and yes, it is worth it having a 25 Yr warranty and the best features of any vacuum available. This unit actually cleans the house, pillows, curtains, mattress, furniture, etc. It is disgusting how many contaminants, allergins, and bed mites alone are in your pillow/mattress which you drool on every night.
If you have multiple pets, I stongly urge you to consider this vacuum.
The 9000 series is the ONLY vacuum on the market which is approved by the National Allergy association - period. It actually traps bacteria and allergins in and seals them inside safely. All other vacuums should be stored outside, as there is no way to keep the bacteria in, although you think you are sweeping it up. The 9000 actually cleans and purifies the air while in operation, and is to date the only vacuum (have used many) that cats are not afraid of
Since a vacuum is a life long investment, do some research first. We absolutely love ours and paid around $1400 for it if I recall correctly. You cannot simply buy these in the stores. Contact an Aurus Electrolux dealer near you to learn more. No I don't sell these but am a green minded person, so buying one vacuum is better than buying several over the next decade, etc.
Think about it.