Bosch Wet Dry Vacuum Review
Bosch wet dry vacuums are known for their robust build and powerful suction, making them a staple in workshops and garages. This review breaks down the top models, their real-world performance, and how they stack up against the competition.
Quick answer
The Bosch GAS 35 M AFC is the top pick for professionals needing automatic filter cleaning and high suction. For most homeowners, the Bosch GAS 20 offers the best blend of power, portability, and value.
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Research updated June 2026.
Bosch GAS 35 M AFC
Automatic filter cleaning and powerful suction for heavy-duty use.
Pros
- Automatic filter cleaning (AFC) maintains suction
- Large 35L container reduces emptying frequency
- Quiet operation for a wet/dry vac
Cons
- Heavy at 19 lbs
- Premium price point
Who is the Bosch GAS 35 M AFC for?
This vacuum is designed for professional contractors and serious DIYers who work with fine dust, such as plaster or concrete. The automatic filter cleaning (AFC) system ensures you do not lose suction, even when collecting large volumes of fine debris. Owner reviews on retailer sites consistently highlight its reliability and strong build quality.
Performance and Build Quality
The Bosch GAS 35 M AFC delivers a maximum suction of 240 mbar from its 1,200W motor. This is sufficient for both wet pickup and fine dust extraction. The flat pleated filter provides a large surface area, and the AFC mechanism shakes it clean every 15 seconds. The container is made from impact-resistant plastic, and the castors are robust enough for rough workshop floors. Aggregated owner reviews give it an average rating of 4.7 out of 5, with most complaints focused on its weight.
Alternatives to Consider
If the GAS 35 M AFC is too large or expensive, the Bosch GAS 20 is a solid alternative. It has a 20L container, 1,000W motor, and is much lighter at 12 lbs. For cordless convenience, the Bosch GAS 18V-10 L Professional offers similar suction power but runs on Bosch Professional 18V batteries. The DeWalt DXV34P is a direct competitor with a similar 34L capacity and tool-activated start, though it lacks automatic filter cleaning.
| Model | Best For | Key Spec | Rating | Price |
|---|---|---|---|---|
| Bosch GAS 35 M AFC | Heavy-duty pro use | 35L / 240 mbar | 4.7/5 | Premium |
| Bosch GAS 20 | Home workshop | 20L / 200 mbar | 4.5/5 | Mid-range |
| Bosch GAS 18V-10 L | Cordless portability | 10L / 180 mbar | 4.3/5 | Mid-range |
| DeWalt DXV34P | Tool-activated start | 34L / 200 mbar | 4.4/5 | Mid-range |
| Makita VC4210L | HEPA filtration | 42L / 200 mbar | 4.6/5 | Premium |
What to check before buying a wet dry vacuum
Consider the container size based on your workspace. A 20L to 35L tank is ideal for most workshops. Check the suction power, measured in air watts or mbar, as higher numbers mean better pickup of heavy debris. Filter type is critical for fine dust; flat pleated filters offer more surface area and last longer than cartridge filters.
Mistakes to avoid
Do not buy a vacuum without checking the noise level. Many high-power models exceed 75 dB, which can be uncomfortable in enclosed spaces. Avoid choosing a model with a small hose diameter if you plan to connect it to power tools, as this can restrict airflow and reduce dust extraction efficiency.
FAQs
Can a Bosch wet dry vacuum pick up water?
Yes, all Bosch wet dry vacuums are designed for both wet and dry pickup. You must remove the paper filter bag before collecting liquids to prevent damage.
How does the automatic filter cleaning work?
The AFC system uses a blast of air to dislodge dust from the filter every 15 seconds. This maintains consistent suction without manual intervention.
What is the warranty on Bosch vacuums?
Bosch Professional vacuums typically come with a 1-year warranty, extendable to 2 years upon registration. Check your local retailer for specific terms.
Are Bosch vacuums compatible with other brand tools?
Yes, most Bosch vacuums include a universal adapter that fits common power tool dust ports. This allows connection to DeWalt, Makita, and other brands.
Which Bosch vacuum is best for fine dust?
The Bosch GAS 35 M AFC with its flat pleated filter and automatic cleaning is the best choice for fine dust like drywall or concrete. It meets M-class dust standards.
How often should I replace the filter?
Replace the filter every 6 to 12 months depending on usage. If you notice reduced suction or visible damage, replace it sooner.
Can I use a Bosch vacuum without a bag?
Yes, but for dry pickup, using a bag keeps the filter cleaner and makes disposal easier. For wet pickup, always remove the bag first.
Is the Bosch GAS 20 good for car cleaning?
Yes, its 20L size and 1,000W motor provide enough suction for car interiors. It is light enough to carry to your driveway.
Do Bosch vacuums have a blower function?
Most Bosch wet dry vacuums do not have a dedicated blower port. You can use the hose outlet for light blowing, but it is not as powerful as a dedicated blower.
What accessories come with the GAS 35 M AFC?
It includes a 3.5m hose, crevice nozzle, floor nozzle, and a universal tool adapter. Some bundles also include a filter bag starter pack.
Our verdict
The Bosch GAS 35 M AFC is the best overall for professionals needing automatic filter cleaning and high suction. For budget-conscious buyers, the Bosch GAS 20 offers excellent value with reliable performance for home workshops.