Eureka 3670M Canister Vacuum Review: Budget Bagged Pick

The Eureka 3670M in one sentence

The Eureka 3670M is a small, bagged canister vacuum that does one job exceptionally well: pulling debris off hard floors and low-pile carpet without making you wrestle a heavy machine around the house. It is the modern retail version of the long-running Eureka Mighty Mite line, and if you have searched for "Eureka Mighty Mite reviews" and landed on the 3670M, you are looking at essentially the same compact canister with updated bag and accessory packaging.

This assessment cross-checks three independent evidence layers against each other: the manufacturer's published specs, lab-style findings from professional reviewers, and recurring themes in verified owner feedback. We synthesized Eureka's official 3670M specification page with independent lab-style testing from TechGearLab, which ran the Mighty Mite through standardized debris and suction tests. Where the two sources differ on numbers, we say so rather than papering over it.

The Eureka 3670M ships in its familiar yellow canister body with five starter bags.

What the Eureka 3670M is good at

The headline strength is hard-floor cleaning. In TechGearLab's standardized debris tests, the Mighty Mite picked up 99.3% of debris on hard floors, among the strongest results in its canister test group, which is why the site named it their Best Budget Canister Vacuum. That tracks with how the machine is built: a bare-floor nozzle paired with a 12-amp, 1200-watt motor and a measured suction figure of about 1767 Pa, which TechGearLab flagged as one of the higher readings it recorded.

Low-pile carpet is the secondary strength. The same testing put low-pile carpet pickup around 88%, and pet hair on low pile around 86%. For tile, sealed hardwood, laminate, and the flatweave rugs most apartments and condos use, that is a genuinely capable little vacuum.

The other quiet advantage is weight. Eureka lists the 3670M at 8.6 pounds; third-party testers weighed their sample closer to 9.4 pounds with the hose and wand attached. Either way it is light enough to carry up a staircase in one hand, which matters more for stairs, car interiors, and above-floor cleaning than raw airflow numbers do.

Where it falls short

Two limitations are worth being blunt about before you buy.

First, deep carpet. On high-pile carpet, debris pickup dropped to roughly 49% in testing. A bare-suction canister with no motorized brush roll simply cannot agitate thick fibers the way an upright with a powered beater bar can. If your home is mostly plush wall-to-wall carpet, this is the wrong tool.

Second, fine-particle filtration. The 3670M uses a sealed high-filtration dust bag, but it is not a sealed HEPA system, and TechGearLab rated its fine-dust filtration as only Fair, noting that small particles "have no trouble making their way out of the machine." Allergy-sensitive households should weigh that. The bag captures the bulk debris well; it is the sub-micron dust where a true HEPA machine pulls ahead.

A cordless stick like the Shark IZ362H trades the Eureka's cord and bag for battery convenience.

Eureka 3670M specs that actually matter

Stripping the marketing language away, here is what Eureka publishes on its official 3670M spec sheet, with third-party measurements noted where they diverge:

• Motor: 12 amps / 1200 watts
• Weight: 8.6 lb (manufacturer); ~9.4 lb as weighed by TechGearLab with attachments
• Dust capacity: 2.5 L sealed high-filtration bag
• Cord: ~20 ft (testing); manufacturer lists a cord-storage hook
• Hose: flexible hose plus telescopic extension wands
• Dimensions: 11.8 in L x 10.6 in W x 20.6 in H
• Warranty: 2-year limited
• Noise: measured around 82 dBA in testing, audible but not unusual for a corded canister

The included kit covers the common above-floor jobs: a combination floor/carpet nozzle, a crevice tool, a dusting brush, and telescopic wands, plus five starter bags in the retail box.

"Eureka 3670M bags" — what you actually need to reorder

This is the single most common follow-up question once people own the machine, so it deserves a clear answer. The 3670M is part of the Mighty Mite family and uses Style MM vacuum bags. The genuine Eureka MM bags carry part numbers in the 60295 / 60297 series, and third-party micro-filtration MM bags are widely sold as direct replacements, including options listed at retailers like The Home Depot.

A few practical notes:

• The MM bag fits the 3670 and 3680 series canisters, so you are not locked into a single SKU.
• Because the 3670M is a bagged machine, ongoing bag cost is the real total cost of ownership, not the sticker price. Budget a few dollars per multi-pack and you are set for months.
• Do not confuse Style MM with Style RR bags. RR bags fit certain Eureka uprights, not this canister.

The 3670M takes Style MM bags; stock a multi-pack so you never run dry mid-clean.

3670M vs. the older Mighty Mite 3670G

If your search history includes "Eureka Mighty Mite reviews" you have probably seen the 3670G referenced. The 3670G is the earlier, widely tested Mighty Mite, and most of the independent lab data quoted above was generated on that body. The 3670M is the current retail trim of the same platform: same Style MM bags, same compact bare-suction canister approach, refreshed accessory bundle and a 2-year warranty on the current listing. For shopping purposes, the published performance of one is a fair proxy for the other.

Who should buy the Eureka 3670M

This vacuum makes sense for a fairly specific shopper, and pretending otherwise would not help you.

Buy it if your home is mostly hard floors with the occasional flat rug, if you want a light machine you can carry to stairs and the car, and if you do not mind buying bags. It is also a sensible secondary vacuum for a garage, workshop, or basement where you want strong suction without spending much.

Skip it if your floors are mostly thick carpet, if anyone in the home has serious dust allergies that demand sealed HEPA, or if you would rather never deal with a cord or a bag again. In that last case, a cordless stick is the more natural fit. We compared that trade-off directly in our Shark IZ362H cordless vacuum review, and you can see how all of these picks stack up in our roundup of the best floor vacuum cleaners.

Verdict

The Eureka 3670M earns its keep as a low-cost, hard-floor specialist. The suction and bare-floor numbers are legitimately strong for the price, the weight is friendly, and the Style MM bag supply is cheap and easy to find. Its weaknesses, deep carpet and fine-dust filtration, are predictable for a bare-suction bagged canister and are easy to plan around. If you match it to the right floors, it is one of the more sensible budget buys in the category.