
SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

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>We have 2 dogs that shed A LOT: > I hear the D4 has a 6L bag but I feel as though itll get full pretty quick. 6L is a ***gallon and a half***.... 1.5 milk jugs full of hair (and concentrated dog fragrance). not sure you can find a bigger bag unless you go commercial. i have 3 dogs. >What about the smell? smell is at full power when the bag gets about quarter full... a fresh bag doesn't stay that way for long.. these use water to filter.. but $$. ($) [https://rainbowsystem.com/](https://rainbowsystem.com/) The Rainbow uses Mother Nature’s most powerful element, water, to trap dirt and odors, returning only naturally clean, water-washed air to your home environment.
The Bissell Revolution is a carpet cleaner and their motors are made to run fewer hours than a household vacuum. So I think your Bissell might break within a year from weekly or more frequent use. I think you should look into a used Rainbow vacuum or Sirena vacuum. These are water filtration vacuums with a bowl of water as the main filter. These Rainbow E2 and newer models and all Sirenas also have a Hepa exhaust filter. So you get water and good filtration. They are also quieter than a carpet cleaner because they have dc motors. Rainbow is the original and you can still buy new Rainbow SRX for $3k. Sirena is a copy-cat that is much cheaper brand new.
I agree with FlatDirection. Rainbow vacuums are not good well-rounded vacuums. The water is novel and the gimmick. Rainbows started showing the dirt long before bagless vacuums became a thing. Because you suck all the air through the water it weakens the suction power. You also have to clean up the dirty water and vacuum after each use. On the bright side, Rainbows are well-made, they last a long time, and they are repairable. If you have carpets or lots of rugs a carpet powerhead like the one on the Rainbow really helps agitate and groom carpets. Sebo still offers carpet powerheads on their canisters and uprights. The Sebo K3, Sebo E3, and Sebo Felix upright all have carpet powerheads. If you don't have carpets or rugs you don't need the carpet powerhead but you can buy a small turbo brush that attaches to any hose. The brush spins because of the air going through the hose turns a small fan. A small turbo brush will help you clean furniture, stairs, and beds.
I have two GSD, females, 9 & 10 years old and I grew up with German Shepherds. I have a Royal, (Kirby), and a Rainbow water base vacuum. Rainbow is expensive, but will last 30 years, no joke. My mother had one for 36 years. After 36 years, my dad took it over and used it in his garage. I bought a used Rainbow from E-Bay 17 years ago. It works great on dog hair. Great suction! Good luck.
I'm a vacuum enthusiast and refurbished two Rainbows. I can confirm that filling the basin with water, emptying it mid-vacuum and then cleaning the basin and water separator after each use is a pain. I prefer to grab my Sebo and get the job done without any hassles (changing a bag is not a hassle). The E3 is the sweet spot in the Sebo canister lineup, its portable enough to carry upstairs and if your stairs are carpeted it will tackle that job too. I recommend the handheld turbo brush for upholstery and carpeted stairs and an upgraded bare floor tool like the premium parquet or the turn and clean style parquet brush.
I will get flack for this, but I love my Rainbow. Works great with 3 cats and teenagers.
I like my Rainbow better than the shop vac. It just works better. But the shop vac is nice to have around my old house for stuff like drywall and lead paint chips

SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

Numatic International
Henry Canister Series
Budget king, super durable, but heavy and poor on carpets.

SEBO
AIRBELT D4 Premium
Durable, powerful, long cord, but heavy and pricey.

SEBO
FELIX Premium
Durable, powerful, good for allergies, but heavy with awkward attachments.

Miele
Classic C1 Cat & Dog PowerLine
Durable, powerful, quiet, but very expensive, short cord.

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
Numatic International - Henry Canister Series

Ranked #1
Dyson - V15 Detect Series