Eureka 3670G Mighty Mite III Canister Vacuum

The Eureka 3670G is part of Eureka's Mighty Mite canister line, a compact canister vacuum built around the idea that not every cleaning job needs a full-size upright following it around. It is the kind of machine cleaners reach for on stairs, in vehicles, and in apartments where a large upright is more machine than the space calls for.

Canister vacuums in this class put the motor and tank aside and let a light hose and wand do the reaching, which is the whole appeal over pushing a heavier upright body across the floor, around furniture legs, or into a car's back seat.

Bag-style canisters like this one hold suction more evenly as the bag fills than a bagless design does, because the paper media has more surface area to breathe through even as dust accumulates. That is part of why the Mighty Mite family has stayed in commercial and light-duty service for as long as it has: steady performance from a fresh bag to a nearly full one, rather than a sharp drop-off midway through a job.

The 3670G runs a 12 amp motor and collects into Eureka's Style MM bags, with a blower port on the exhaust side for clearing a deck or a garage corner and a 20 foot cord for working a room or a vehicle from one outlet. Routine care comes down to changing the MM bag before it packs solid and checking the hose for cracks or a weak seal at the cuff, since either one quietly kills suction long before the motor itself shows any sign of wear. A machine of this age is also worth a periodic look at the power cord where it exits the housing, the same stress point that fails first on most canisters this size.

• Model: Eureka 3670G, Mighty Mite III
• Category: compact canister vacuum, 12 amp motor, 20 foot cord, blower port
• Bags: Eureka Style MM disposables, with a cloth shake-out bag available
• Best for: stairs, vehicle interiors, and apartments where a full-size upright is more than the space needs
• Maintenance: change the bag before it packs solid; check the hose cuff seal if suction drops