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

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I swear, even vac companies are sexist. I was cleaning for a guy and he asked me to use his DeWalt hand vac on the stairs. I was, like, WAIT A MINUTE! A cordless vacuum with an endless supply of rechargeable batteries that you can pop in? I ended up getting a Ryobi hand held that has a floor adapter. I can use it at most clients houses and in my car and shop! It's easy to clean. It comes apart and fits in a backpack! The only disadvantage is the container is small. It's not good for houses with a lot of dog hair. But other than that I LOVE it. I bicycle commute to most of my jobs, so it fitting in a backpack is awesome!
The small Ryobi hand vacuums don't have any cyclonic separators so everything just gathers by the filter and they can lose suction pretty quickly. I prefer a small hose and crevice tool to get into the tight areas of a car. So I'd look at the [18V ONE+ 1 GALLON WET/DRY VACUUM PCL733B](https://www.ryobitools.com/products/33287199839) and the [18V ONE+ HP BRUSHLESS JOBSITE HAND VACUUM PBLHV701B](https://www.ryobitools.com/products/33287201853?queryID=43f62e70ac71c8f21ec671958067cc30&objectID=51791472296299). The 1 Gallon Wet/Dry can use a hepa cartridge filter and the Brushless Jobsite Hand Vacuum comes with a hepa cartridge filter. I'd choose the Brushless Jobsite Hand Vacuum, the brushless motor is more powerful and it comes with the hepa filter standard.
Depends on the job. For small jobs I bring ONE+ HP 18V Cordless Hand Vacuum. Although wet/dry vac preferred. May get PCL702B. Harbor Freight has a similar one if you're budget: HERCULES 20V Cordless, 1/2 Gallon Wet/Dry Portable Vacuum. I'm starting my helper on DeWalt. So a very small part of his paycheck pays for his tools: [https://www.homedepot.com/pep/DEWALT-20V-MAX-Cordless-1-2-Gal-Wet-Dry-Portable-Vacuum-Tool-Only-DCV517B/206855393](https://www.homedepot.com/pep/DEWALT-20V-MAX-Cordless-1-2-Gal-Wet-Dry-Portable-Vacuum-Tool-Only-DCV517B/206855393)
Until last year we had the classic Sanitaire. Then the motor burnt out on all of them because nobody can take care of them. They replaced them with shitty little battery powered Ryobi ones definitely NOT made for commercial use. Surprise, mine already had a wheel fall off this week 😒
Get one with a cord. Also, Dyson filters need to be cleaned often. Try cleaning the filter to help with suction. I have a Dyson multi floor canister (with a cord) and have had it for over a decade. I still love it. Recently my husband bought me a handheld cordless shop vac for cleaning up messes in the kitchen. It's awesome. It's by Ryobi and uses the same battery packs as my husband's tools. I highly recommend it. They have a stick vac version of it too.
I have 4. Dyson Outsize+ stick vac, Dyson DC24 (old model), Roomba and a Ryobi handheld dustbuster.

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