Best Shop Vac for CNC Router: 5 Dust Collection Picks

Specs compared

Capacities and HP are manufacturer rated, collected 20 October 2026. Two Stanley listings contradict their own spec tables; we trust the titles and bullets in both cases.

Best shop vac for cnc router: what the listings tell you

We compared five wet/dry vacs. Stated capacities are 2.5, 4, 5, 6 and 8 gallons, with peak HP from 2.5 to 5.0. Stated weights run 6.7 lb to 14.9 lb. Stated noise is 80 db on four and 72 db on the Craftsman. Stated warranties are 3 years on two, 12 months or 1 year on two, and none on the DXV04T. Every unit states a blower function. The two Stanley listings contradict their own spec tables on capacity and HP.

Buying guide: the best shop vac for cnc router

Capacity and horsepower compared

The stated capacities are 8, 6, 5, 4 and 2.5 gallons. The stated peak HP figures are 5.0 on the DXV04T, 5 on the DXV08S, 4 on both Stanleys and 2.5 on the Craftsman. For long CNC sessions, the stated 8 gallon figure is the run-longer feature; for quick cleanup by a desktop router, the stated 2.5 gallon figure keeps the carry light. The Craftsman states 49 CFM, the SL18115P states 85 CFM, and the SL18116P states 80 CFM in its table.

Hose, cord and reach

The stated reaches are over 16 ft on the SL18116P from a 6 ft hose, a 10 ft cord and 3 wands, 15 ft on the SL18115P, and over 17 ft on the DXV08S from a 10 ft cord and a 7 ft hose. The Craftsman states a 1-1/4 in x 5 ft hose and a 10 ft cord, and the DXV04T states a 7 ft hose. All five state four swivel casters or wheels except the Craftsman, which states a carry handle. For a fixed CNC station, the stated caster figures matter; for carrying, the stated 6.7 lb Craftsman is the feature.

Filters and bags

The SL18116P states a foam filter, a dust bag and a reusable dry filter. The SL18115P states a foam filter, a cloth bag with clamp ring and a dust bag. The Craftsman states a filter bag with a genuine replacement named. The DXV08S states a cartridge filter and a disposable dust bag. The DXV04T states no filter detail in the shown text. For fine CNC dust, the stated bag-plus-filter combinations are the ones to compare.

Noise

Four units state 80 db and the Craftsman states 72 db, the quietest figure here. All state a single speed and a single power level. For a shop where the spindle already runs for hours, the stated 72 db figure is the quieter pick.

The contradictory listings

The SL18116P title and bullets state 6 Gallon and 4 peak HP while its spec table states 3 Gallon and 3 peak HP. The SL18115P title states 5 Gallon and 4 Horsepower while its spec table states 3 Gallon capacity. Per our rule we trust the titles and bullets. Where a listing leaves the facts unclear, we say so rather than scoring on the unclear figure.

For the fumes side of shop safety, see the best fume extractor for laser engraver, and pair the vac with the best CNC bit set for engraving.

Project Match

• Long MDF cutting sessions: the DXV08S states an 8 gallon tank and a stated 3-year warranty.
• One vac for the CNC, garage and car: the SL18116P states 3-in-1 wet, dry and blower work.
• Stated airflow first: the SL18115P states 85 CFM with a 15 ft range.
• Desktop router and small messes: the Craftsman states 6.7 lb and a carry handle.
• Stated 5.0 HP in a compact body: the DXV04T states 4 gallons at 13.2 lb.

Matching the vac to the router

Start with the hose. The DXV08S states a 1-7/8 in hose, while the Stanleys and the Craftsman state 1-1/4 in hoses. A wider hose moves chips and offcuts faster, but the 1-7/8 in hose needs a matching dust port or a reducer; the 1-1/4 in hoses fit the smaller ports found on compact routers. None of the five states a port adapter in the box, so check the router’s dust shoe before choosing.

Then weigh capacity against portability. The DXV08S states 8 gallons for long sessions without emptying, while the Craftsman states 2.5 gallons at 6.7 lb with a carry handle for quick cleanup by a desktop router. The DXV04T states 4 gallons at 13.2 lb as the middle ground. A bigger tank means fewer trips to the bin; a smaller tank means the vac rides on the bench instead of under it.

Airflow and noise are the last stated figures to compare. The SL18115P states 85 CFM with a 15 ft range, against the Craftsman’s stated 49 CFM, 50 inches of lift and 72 db noise. Higher stated CFM suits a router throwing heavy chips; the lower stated noise figure suits a shared shop. Every listing states a blower function, so the vac can also clear the bench and the floor around the machine.

How the scores add up

Each vac is scored on performance, build, value, safety and warranty. Capacity, peak HP and the stated airflow decide performance; the stated warranty term decides warranty, and where none is stated the score is zero. Safety scores zero across the board: no listing states a laser class or safety certification for these vacs. The comparison table and the product cards show the rest.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.

FAQ: lasers and CNC

What size shop vac for a CNC router?

The stated capacities here are 2.5, 4, 5, 6 and 8 gallons. Long sessions favor the stated 8 gallon DXV08S; a desktop router fits the stated 2.5 gallon Craftsman.

Wet/dry or a dedicated dust extractor?

All five are wet/dry vacs with a blower function stated. For wet spills and dry dust in one unit, the stated 3-in-1 figures are the route; none here states a dedicated extractor rating.

Does the hose size matter?

The stated hose figures are 1-1/4 in on the Stanleys and Craftsman and 1-7/8 in on the DXV08S. The wider stated figure moves debris faster; the narrower stated figures fit tight spots.

Which states the longest warranty?

The DXV08S and the Craftsman state 3 years, the longest stated terms here. The Stanleys state 12 months and 1 year; the DXV04T states none.

Is the blower function useful?

Every listing states a blower or blower port. The DXV08S states a rear blower port for leaves and debris, and the SL18116P states blower as part of its 3-in-1 function.

Related: the MDF vs plywood for CNC router, the best CNC bit set for engraving, and the best fume extractor for laser engraver.