Last reviewed: May 2026 · MLC editorial team · UK trade workshop perspective
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A consumer wet/dry vac clogs on metal swarf within an hour. A real workshop unit has 35-50L capacity, 100-plus mbar suction, and a HEPA filter that doesn't blow milling dust back into the air. In this article, we focus on industrial-grade wet-dry vacuum cleaners designed for UK workshops, ranging from £200 to £800. These machines are built to handle tough tasks like cleaning up coolant spills or sweeping away sawdust without breaking down. We'll cover models from well-known brands such as Nilfisk, Karcher, and Bona, all of which offer features tailored for professional use, including robust construction, powerful motors, and versatile attachments. Whether you're dealing with wet messes or dry debris, the right industrial vacuum can make a significant difference in your workshop's efficiency and cleanliness.
How we picked these
- Suction (mbar): 200 mbar minimum for swarf and milling chips. 230+ for fine dust.
- Air flow (L/sec): 50 L/sec minimum for sustained workshop pickup.
- Capacity: 35L minimum for swarf, 50-70L if doing coolant cleanup.
- Filter class: M-class minimum for non-hazardous dust. H-class for silica / lead / hardwood dust.
- Auto power-take-off: switches the vac on when the connected tool starts. Essential for dust extraction off a router / saw.
Reviewed picks
Karcher NT 35/1 Tact (35L M-class)
Price: £500-£700 | Best for: workshop dust extraction off mitre saws, routers, sanders
The Karcher NT 35/1 Tact is a premium wet and dry vacuum for UK workshops priced between £500 and £700. It boasts an auto-clean M-class filter certified for fine dust extraction from mitre saws and routers. However, its 35-litre tank fills quickly with swarf, requiring frequent emptying.
| Tank | 35L |
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| Suction | 254 mbar |
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| Air flow | 61 L/sec |
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| Filter | M-class |
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| Auto-PTO | Yes |
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Pros
- Auto-clean filter (Tact)
- M-class certified
- Auto power take-off
Cons
- 35L fills fast with swarf
- Premium brand pricing
Check Karcher NT 35/1 Tact (35L M-class) on Amazon UK →
Numatic NVH200-2 (28L)
Price: £280-£380 | Best for: general workshop cleanup, automotive valeting
The Numatic NVH200-2 (28L) is a reliable wet-dry vacuum for UK workshops priced between £280 and £380. Built tough with an HDPE tank, it handles general cleanup and automotive valeting well. However, it lacks M-class certification and auto-clean filter features.
| Tank | 28L |
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| Suction | 250 mbar |
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| Air flow | 43 L/sec |
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| Filter | Standard |
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| Power | 1500W |
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Pros
- UK-made (Henry brand parent)
- Tough HDPE tank
- Sensible price for workshop
Cons
- No M-class
- No auto-clean filter
Check Numatic NVH200-2 (28L) on Amazon UK →
Festool CTM 36 E AC (36L M-class)
Price: £700-£950 | Best for: fine wood / composite dust off Festool tools
The Festool CTM 36 E AC is a top-tier wet dry vacuum for UK workshops, priced between £700 and £950. Boasting an impressive 24,000 Pa suction and M-class HEPA filtration, it excels at capturing fine wood and composite dust from Festool tools. Its auto-clean feature ensures constant performance, but the hose is specific to Festool sizes, limiting compatibility with other brands.
| Tank | 36L |
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| Suction | 24,000 Pa |
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| Air flow | 3,900 L/min |
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| Filter | M-class HEPA |
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| Auto-PTO | Yes |
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Pros
- HEPA-grade filtration
- Auto-clean
- Festool plug-in for tool integration
Cons
- Premium pricing
- Hose is Festool-specific size
Check Festool CTM 36 E AC (36L M-class) on Amazon UK →
Nilfisk Aero 26-21 PC (25L)
Price: £280-£400 | Best for: workshop vacuum that also goes to site
The Nilfisk Aero 26-21 PC (25L) is a solid choice for UK workshops and site work, priced between £280 and £400. It offers an M-class filter option for fine dust collection but comes with a modest 25-litre tank capacity. The auto-PTO feature and push-clean filter are handy additions, though the M-class upgrade is an extra cost.
| Tank | 25L |
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| Suction | 250 mbar |
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| Air flow | 60 L/sec |
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| Filter | M-class option |
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| Auto-PTO | Yes |
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Pros
- M-class option
- Compact for site work
- Push-clean filter
Cons
- 25L is on the small side
- M-class is optional extra
Check Nilfisk Aero 26-21 PC (25L) on Amazon UK →
Karcher NT 70/2 (70L wet/dry)
Price: £800-£1,100 | Best for: coolant cleanup, big swarf jobs
The Karcher NT 70/2 is a robust wet/dry vacuum for industrial settings, priced between £800 and £1,100. It boasts a 70-litre tank ideal for coolant cleanup and large swarf jobs, with twin motors providing powerful suction at 230 mbar. A built-in drain tap simplifies emptying the tank. However, its sizeable footprint takes up valuable workshop space, and it doesn't meet M-class standards for finer dust filtration.
| Tank | 70L |
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| Suction | 230 mbar |
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| Air flow | 74 L/sec |
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| Filter | Standard |
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| Pumps | Twin motor |
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Pros
- 70L for coolant volumes
- Twin motors
- Drain tap built-in
Check Karcher NT 70/2 (70L wet/dry) on Amazon UK →
Mirka DE 1230 L PC (28L L-class)
Price: £550-£780 | Best for: body-shop / paint prep sanding dust
The Mirka DE 1230 L PC (28L) is a robust wet dry vacuum for body shops and paint prep areas, priced between £550 and £780. With an impressive suction of 23,000 Pa and an auto-PTO feature, it excels at handling fine sanding dust thanks to its L-class HEPA filter. Its antistatic hose prevents static buildup, a notable pro for precision workspaces. However, the smaller tank size compared to Karcher models and the lack of M-class filtration are minor drawbacks.
| Tank | 28L |
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| Suction | 23,000 Pa |
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| Filter | L-class |
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| Auto-PTO | Yes |
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| Hose | Antistatic |
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Pros
- Antistatic hose (no static buildup)
- L-class HEPA
- Mirka tool integration
Cons
- L-class not M-class
- Smaller tank than Karcher
Check Mirka DE 1230 L PC (28L L-class) on Amazon UK →
Recommendations at a glance
| Best overall (workshop) | Karcher NT 35/1 Tact - M-class + auto-clean filter + auto PTO |
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| Best premium (fine dust) | Festool CTM 36 E AC - HEPA M-class with tool integration |
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| Best for coolant cleanup | Karcher NT 70/2 - 70L tank with drain tap |
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| Best budget workshop | Numatic NVH200-2 - UK-made, 28L, sensible price |
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| Best for body shop | Mirka DE 1230 L PC - antistatic, sanding-optimised |
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Related reference on MLC
Frequently asked questions
L-class, M-class or H-class filter - what's the difference?
L-class: low-risk dust (general cleanup). M-class: medium-risk including wood, hardwood, and most metal dust. H-class: hazardous dust (silica, lead, asbestos). M-class is the workshop standard.
Why does my vacuum lose suction on swarf?
Swarf compacts in the filter and chokes airflow. The fix is either a HEPA filter with auto-clean (Tact / push-clean systems) or a cyclonic pre-separator that drops 95% of swarf before it hits the filter.
Do I need auto power take-off?
If you connect the vac to a router, mitre saw, or sander - yes. The vac switches on when the tool starts and runs for 3-15s after the tool stops to clear the hose. Without auto-PTO you forget to run the vac and clog the workshop with dust.
Can I vacuum coolant?
Yes - any wet/dry vac with a stainless or HDPE tank handles coolant. Empty the tank after each use and rinse. Some Karcher models have built-in drain taps for tank-emptying.
Are these louder than household vacuums?
Most workshop vacs run 65-75 dB. Karcher Tact and Festool CTM are at the quiet end (~65 dB). Cheaper builders' vacs run 80+ dB.
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