Intro
A serious workshop or job site generates mess at a scale that quickly overwhelms household cleaning tools. Fine dust from sanding and cutting hangs in the air, larger debris from drilling and chiselling scatters across the floor, and the occasional liquid spill demands a different approach entirely. When your work involves materials that produce hazardous dust — silica from concrete, fibres from insulation, or chemical residues — the vacuum you choose is not just about convenience. It is about compliance with workplace safety standards and protecting your long-term respiratory health. An industrial-grade wet-and-dry extractor with proper dust class certification, automatic power tool switching, and effective filter cleaning technology turns what could be a constant battle against airborne particles into a controlled, efficient process. The right machine works with you, not against you — it starts when your power tool starts, keeps its filter clear without interrupting your workflow, and shuts itself off before a wet tank overflows.
Generalities
When evaluating an industrial wet-and-dry extractor, several features separate serious professional tools from basic workshop vacuums. Dust class certification is the first filter: a Class L rating under EU standards means the machine captures at least 99% of airborne dust particles, making it suitable for use with most construction materials that are hazardous to health. An automatic power tool socket is another game-changing feature — it lets the vacuum start and stop in sync with a connected tool such as a saw or sander, so you are not constantly reaching for a separate switch. Filter cleaning technology matters enormously in daily use: a system that lets you clear the filter with a button press during work pauses maintains suction without stopping to dismantle anything. Tank capacity, hose length, antistatic protection, and onboard accessory storage all contribute to how smoothly the machine integrates into a professional workflow. Metabo, known primarily for its power tools, brings the ASA 30 L PC into this space with a feature set aimed squarely at tradespeople who need a dependable, regulation-compliant dust extractor.
In this review we examine the Metabo ASA 30 L PC in detail — its 1200 W motor performance, PressClean filter system, automatic power tool switching, antistatic design, 30-litre capacity, and real-world usability across construction, renovation, and workshop environments. We also provide an honest breakdown of pros and cons to help you decide if this industrial extractor fits your professional needs.
Description
The Metabo ASA 30 L PC is built around a 1200 W motor driving a 30-litre collection tank — the largest capacity among mid-range professional extractors and a genuine productivity advantage when working through extended sawing, sanding, or grinding sessions. It carries EU Class L dust certification, meaning it is rated to capture at least 99% of airborne particles and is approved for professional use with most construction dusts classified as hazardous to health. The machine operates on standard 240 V mains power with a generous 5.5-metre cable, and it features a built-in power tool socket that enables automatic start/stop synchronisation — plug in your saw, sander, or router, and the vacuum switches on and off with the tool, eliminating the constant reaching for a separate switch that costs time and focus on busy job sites.
Metabo's PressClean system is the standout design feature here. During work pauses you press a dedicated switch on the vacuum, and a powerful reverse air current blasts through the cartridge filter, dislodging accumulated dust and restoring full suction in seconds. You never open the machine, never touch the filter, and never interrupt your workflow for more than a moment. The basic antistatic equipment prevents static charge build-up when used with the appropriate accessories — an important detail when working around sensitive electronics, in finishing environments, or simply to avoid the annoying static shocks that cheaper vacuums deliver. The 3.2-metre suction hose with a 32 mm diameter provides excellent reach and resists clogging with larger debris.
Day-to-day usability benefits from several well-considered practical features. The automatic wet shutoff stops suction when the tank reaches its maximum liquid fill level, preventing motor damage and messy overflows — a safety feature that cheaper wet-and-dry vacuums often lack. The automatic hose drainage system ensures complete emptying of the suction hose after wet use, so you do not get a surprise splash of dirty water the next time you pick it up. At 64 dB the ASA 30 L PC is noticeably quieter than most competitors in its power class, which typically run at 76 dB or higher — a meaningful difference when working in occupied buildings, residential renovations, or any setting where noise is a concern. Transport is simplified by dedicated holders for the cable, hose, and suction tubes, plus a practical accessory compartment with a lid for storing small parts and nozzles.
The accessory package delivered with the ASA 30 L PC is comprehensive. Metabo includes a 3.2-metre suction hose (Ø 32 mm), a Quick connection sleeve (Ø 28/35 mm), a Quick Professional handle intermediate piece, three plastic suction tubes, a fleece filter bag, a crevice nozzle for narrow gaps, a wide floor nozzle (300 mm) for broad surfaces, and a smaller suction nozzle (120 mm). All accessories use Metabo's Quick system for rapid conversion between tasks — swap from floor cleaning to crevice work in seconds without tools. The metaBOX quick coupling system lets you attach compatible Metabo tool cases directly to the vacuum for integrated transport, turning the extractor into a mobile workstation. The top of the unit includes a practical storage area with a lid, keeping small items like screws, drill bits, or adaptors secure and within reach.
Physically the ASA 30 L PC measures 60 × 40 × 40 cm and weighs 10.8 kg — the weight reflects its substantial 30-litre capacity and robust build, and the four-wheel base ensures stable tracking across uneven workshop and site floors. Two handles make lifting into a van or up stairs manageable despite the weight. Metabo provides a 2-year legal warranty. Customer feedback is solid with a rating of 4.3 out of 5 stars based on 171 reviews, and the product holds a #65 ranking in Cylinder Vacuums. For tradespeople who prioritise dust class compliance, automatic power tool switching, and genuinely quiet operation, the ASA 30 L PC delivers a feature set typically found on significantly more expensive industrial extraction systems.
Pros and cons
Pros
- Built-in power tool socket with automatic start/stop synchronisation — plug in a saw, sander, or router and the vacuum switches on and off with the tool, eliminating the distraction of reaching for a separate switch during precision work
- PressClean filter cleaning system restores full suction with a single button press — a powerful reverse air pulse blasts the cartridge filter clean during work pauses without opening the machine or touching any dirty components
- At 64 dB this is one of the quietest industrial extractors in its power class — most competitors run at 76 dB or higher, making the ASA 30 L PC far more suitable for occupied buildings, residential renovations, and noise-sensitive work environments
- Generous 30-litre tank capacity handles extended work sessions without interruption — whether you are sanding floors all day or extracting from multiple power tools, the larger bin means significantly fewer emptying stops
- EU Class L dust certification provides verified protection for professional use with hazardous construction dusts — a compliance requirement on many job sites that consumer-grade vacuums simply cannot meet
- Antistatic equipment as standard prevents static charge build-up that can cause uncomfortable shocks and damage sensitive electronics — a professional-grade feature that many competitors in this price bracket treat as an optional extra
- Automatic wet shutoff and hose drainage system protect the motor from water damage and prevent messy spills — when the tank reaches maximum liquid level, suction stops automatically, and the hose empties completely after wet use
- metaBOX quick coupling lets you attach compatible Metabo tool cases directly to the vacuum for integrated transport — a practical feature that turns the extractor into a mobile workstation and keeps tools and dust extraction together
Cons
- At 10.8 kg the unit is among the heavier options in its class — while the weight reflects the robust build and 30-litre capacity, carrying it up multiple flights of stairs or loading it into a high vehicle on a daily basis requires effort
- Single power level with no variable suction control — while the automatic tool socket handles on/off synchronisation well, you cannot reduce suction for delicate tasks or lightweight materials that full power might displace
- The metaBOX quick coupling system only works with Metabo tool cases — if your power tools are from other brands, this clever transport integration feature provides no benefit, though the vacuum itself functions perfectly regardless
- At €230 the ASA 30 L PC sits at a premium price point compared to basic 30-litre shop vacuums — the investment is justified by the Class L certification, auto socket, PressClean, and quiet operation, but budget-conscious DIYers may find more affordable alternatives adequate for occasional use
- The fleece filter bag is a consumable expense — while the PressClean system extends bag life by keeping the filter clear, replacement bags add ongoing running costs that bagless cyclone-based systems avoid entirely
Use cases
The Metabo ASA 30 L PC is purpose-built for professional tradespeople and serious workshop operators who need a Class L certified, feature-rich wet-and-dry extractor with automatic power tool switching, quiet operation, and a generous 30-litre capacity for extended dust-producing work sessions.
Professional Construction Dust Control
On active construction sites where silica dust, concrete particles, and insulation fibres are airborne daily hazards, the Class L certification and automatic power tool socket make the ASA 30 L PC a compliance-ready solution. Connect a wall chaser, concrete grinder, or drywall sander and the vacuum runs in sync — capturing hazardous dust at source while you focus entirely on the cut rather than managing the extraction.
Joinery and Cabinet Workshop
Fine wood dust from sanding and sawing fills a workshop air quickly and settles on every surface, including freshly finished pieces. The 64 dB noise level means the ASA 30 L PC can run alongside precision work without drowning out conversation or radio, while the PressClean button keeps suction strong throughout a full day of cabinet making without stopping to clean filters.
Residential Renovation in Occupied Homes
When renovating a kitchen, bathroom, or living space that the client still uses, noise and dust control define the quality of your service. The ASA 30 L PC's quiet 64 dB operation avoids disturbing the household, the Class L filtration prevents renovation dust from migrating to other rooms, and the auto socket lets you connect a multi-tool or sander for clean, contained work.
Large-Scale Wet Recovery
A burst pipe, flooded basement, or major spill in a commercial setting demands capacity. The 30-litre tank extracts substantial volumes of water before needing emptying, and the automatic wet shutoff prevents overfilling and motor damage. The hose drainage system ensures the hose is empty after wet use, avoiding dirty water surprises when you next pick it up.
Mobile Tradesperson Daily Setup
Electricians, plumbers, and HVAC technicians who move between multiple jobs daily benefit from the metaBOX quick coupling system — attach your most-used tool case to the vacuum and transport everything as one unit from the van to the job. The 5.5-metre cable gives generous reach from a single socket, and the onboard accessory storage keeps nozzles and tubes organised and immediately accessible.