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M class dust extractor vs shop vac

Updated: 2026-10-21

You are looking at a Trend with an M-class label and, beside it, an Evolution, a KATSU or a Vacmaster that costs less and still says dust extractor. This M class dust extractor vs shop vac page is that choice. A HEPA line, or a filter that sounds fine, is not the class printed on the machine. Prices are the amazon.co.uk figures stored for this comparison. The Products Compared editorial team did not lab-test these machines. A qualifying purchase can earn us a commission at no extra cost to you. The shelf table is on the [dust extractor comparison](/hub/workshop/dust-extractor).

You are looking at a Trend with an M-class label and, beside it, an Evolution, a KATSU or a Vacmaster that costs less and still says dust extractor. This M class dust extractor vs shop vac page is that choice.

Our top picks

Vacmaster Vacmaster Power 30 PTO

Best overall

Vacmaster Vacmaster Power 30 PTO
7.4/10about £87.99
View offer
Trend Trend T32

Rank 2

Trend Trend T32
8.2/10about £114.95
View offer
Trend Trend T35A

Alternative

Trend Trend T35A
7.5/10about £334.48
View offer
On this page
  1. 1.What you can check on the label
  2. 2.When the shop vacuum is the honest buy
  3. 3.When the M-class row is the one HSE is describing
  4. 4.A recommendation with a condition

What you can check on the label

Read the class line before the micron line. HSE CIS69 says you should not just fit a HEPA filter in a general commercial vacuum and call the job done. You choose an M or H class unit, with a way to see that the airflow has dropped. Three listings print M-class: the Trend T32, the T35A and the 110 V T33AL. The Evolution, the KATSU and the Vacmaster state no class. The KATSU's 0.5 micron sentence is not the class of the machine.

When the shop vacuum is the honest buy

Buy the shop vac when the job is ordinary debris and you will say out loud that the class is missing. Spills, leaves, rubble, glass and chips are the work the Vacmaster reviews describe, across 4.4 from 1,801 ratings, at about £87.99. The Evolution is the same kind of buy at about £78.00 if the tool sits under the roughly 1,700 W owners report. The KATSU is the honest buy only when you want the 55 litre drum and you will not tell anyone it is M-class. There is no Henry ASIN in this comparison.
Vacmaster Vacmaster Power 30 PTO

Testsieger

Vacmaster Vacmaster Power 30 PTO
7.4/10about £87.99
View offer

When the M-class row is the one HSE is describing

Wood dust and the construction dusts CIS69 groups with it are the turn. On a house socket that description lands on the T32 at about £114.95. You do not get a socket. Pay the extra when the dust is the reason you are shopping. Do not pay it for wet leaves. The T35A adds auto-start at about £334.48. The Bosch GAS12-25LS is L-class at about £192.98, so you can pay more than the T32 and still not have the label. Criteria in that order are on the dust extractor buying guide.

A recommendation with a condition

Choose the M-class extractor when the dust is wood or other dust HSE points at M or H, and choose the shop vac when the job is ordinary debris and you accept the missing class. On 240 V that picks the Trend T32, unless the tool must start the vacuum, in which case the T35A states auto-start. The shop-vac side picks the Vacmaster, because the 1,490 W take-off is printed. An airflow LED does not measure your exposure, and it does not remove a mask from sanding. Limits and the mask sit on the wood dust extractor page. Who should skip each ASIN is on the best dust extractor page.

Common questions

Is a shop vacuum with a good filter enough?
For chips, water and ordinary garage mess, a shop vac can be enough, and you should still say it has no dust class. For wood dust, HSE says a HEPA filter in a general vacuum is not the control it is describing. The Evolution, KATSU and Vacmaster are the unclassed rows here, from about £78.00 to about £87.99. The M-class labels in this set are the three Trend models.
When is M-class worth the extra money?
It is worth it when the dust is wood or the construction dust CIS69 groups with it, and you are comparing the T32 at about £114.95 with a vac near £80 that prints no class. It is poor value when you only need to pick up water and rubble, because the Vacmaster already has 1,801 reviews for that job at about £87.99. The T35A at about £334.48 is a further step, for auto-start and capacity, not the default extra.
Does the KATSU count as M-class because it says 0.5 microns?
No. The KATSU 171182 claims HEPA filtration to 0.5 microns. The listing does not state L, M or H. HSE treats that pattern as the general vacuum with a HEPA filter, which it says is not adequate for the dusts it points at class M. A 55 litre drum at about £86.99 holds debris. It does not print the class.
Where does the L-class Bosch sit?
The Bosch GAS12-25LS is neither the shop-vac group nor the M-class group. It states L-class, at about £192.98, with a 3.1 m hose and only four reviews. HSE keeps L-class for lower-toxicity dusts such as gypsum. It costs more than the M-class T32. If your dust is wood, the L-class label is the reason to leave it, not the brand.
What do I give up if I buy the Evolution?
You give up a stated dust class, a hose that fits without a hunt for an adaptor, and a listing that agrees with itself. You keep an about £78.00 wet-and-dry vac with 4.6 from 759 reviews and a socket owners put near 1,700 W. Fine sanding dust clogs it, and a mitre saw can still throw dust past the hose. Those are the terms, not a hidden M-class rating.
Is M-class the same as safe?
No. M-class is a label and a set of features, including the airflow warning on these Trend rows. It is not an exposure test of your workshop, and it does not cancel a mask for sanding. The T32 still draws complaints about bags, clips and a motor. Read the class as the right shelf, then read the reviews for how that particular machine wears.

Related pages

How to use a dust extractor

Dust extractor

Best dust extractor: which listing to skip and why

Dust extractor buying guide: class, volts and socket

Wood dust extractor: UK limits, class M and a mask

Sources

Public UK sources and the amazon.co.uk listings compared on this page. Updated October 2026.

  1. HSE: Wood dust (retrieved October 2026)
  2. HSE: CIS69 Controlling construction dust with on-tool extraction (retrieved October 2026)
  3. HSE: Cutting and sanding wood (retrieved October 2026)
  4. HSE: WD7 Wood dust (retrieved October 2026)
  5. COSHH regulation 9 (retrieved October 2026)
  6. HSE: Electrical systems in buildings (retrieved October 2026)
  7. Bosch Professional GB: Dust extractors (retrieved October 2026)
  8. Trend UK: T35A 1400 W M-class dust extractor (retrieved October 2026)