H-Class Vacuum Extraction for Asbestos-Related Work | V-TUF
H-Class dust extraction for asbestos-related and high-hazard refurbishment work
Asbestos-containing materials (ACMs) are present in a significant proportion of UK buildings constructed before 2000. Any maintenance, refurbishment or demolition work that disturbs ACMs — or takes place in buildings where ACMs may be present — requires contractors to understand the asbestos regulatory framework, how it interacts with dust extraction requirements, and what equipment is needed for compliant work.
This page covers the regulatory distinction between licensed, notifiable non-licensed and non-licensed asbestos work; the role of H-Class vacuum extraction in the control of asbestos fibre release during and after work; and the V-TUF H-Class machines used by refurbishment and maintenance contractors working in buildings with asbestos.
The three categories of asbestos work — what applies to maintenance contractors
The Control of Asbestos Regulations 2012 divides asbestos work into three categories based on risk:
Licensed asbestos work
The highest-risk work — removal of sprayed asbestos coatings, asbestos insulation, and asbestos insulation board in significant quantities. Must be carried out by a contractor holding an HSE licence. Requires air monitoring, supervised enclosures and four-stage clearance. This category is outside the scope of general refurbishment contractors.
Notifiable non-licensed work (NNLW)
Work that is not licensable but still carries significant risk — for example, removal of asbestos cement in quantity, work on asbestos textured coatings, and short-duration work on asbestos insulation board. Must be notified to the HSE before starting. Workers must have medical surveillance and training records. Adequate controls including H-Class vacuum extraction and RPE are required.
Non-licensed asbestos work
The category most relevant to general maintenance and refurbishment contractors — short-duration, sporadic work that is unlikely to result in significant fibre release. Examples include drilling through asbestos cement roof sheeting for fixings, removing small amounts of asbestos textured coating (Artex) in preparation for redecoration, or cutting through an asbestos-containing floor tile. Non-licensed work still requires a risk assessment, appropriate controls and trained operatives — but does not require an HSE licence or notification.
For non-licensed asbestos work, the principal control measures are minimising disturbance, using appropriate RPE, and using H-Class vacuum extraction to collect and contain asbestos-containing debris and dust before it becomes airborne or is spread by foot traffic.
Why H-Class and not M-Class for asbestos-adjacent work
Asbestos fibres are classified as a Category 1 carcinogen. There is no known safe level of exposure. The filtration requirement for any vacuum used in asbestos work — including non-licensed work — is H-Class: 99.995% filtration efficiency at the most penetrating particle size, with sealed disposal that prevents secondary fibre release during bag removal and replacement.
M-Class extraction (99.9% efficiency) is rated for general construction dust including silica. It is not rated for, and must not be used for, asbestos-containing material. Using an M-Class vacuum to clean up after asbestos-related work will allow asbestos fibres to pass through the filter and be exhausted back into the air.
H-Class vacuums with Type H certified disposal bags are the correct and only compliant tool for vacuum collection of asbestos-containing debris and dust in non-licensed and notifiable non-licensed work.
H-Class extraction in refurbishment — the practical requirement
Most pre-2000 UK buildings contain some ACMs. In a general refurbishment project — a school, hospital, office building, social housing block, or commercial premises built before 2000 — the contractor cannot be certain that all materials being disturbed are asbestos-free without a current, valid asbestos survey. Where a survey has not been carried out, or where the survey does not cover all areas being worked, the duty to manage asbestos under Regulation 4 of CAR 2012 requires contractors to assume materials may contain asbestos and work accordingly.
In practice, this means specifying H-Class extraction as the default for refurbishment and maintenance works in pre-2000 buildings, rather than upgrading only when asbestos is confirmed. This approach is defensible under COSHH and CDM 2015, reduces the risk of inadvertent non-licensed asbestos work without adequate controls, and is increasingly expected by principal contractors as part of pre-start documentation checks.
V-TUF H-Class extractors for asbestos-related and refurbishment work
V-TUF MIDI HSV — 21L H-Class, 110V and 240V
The compact H-Class specification for maintenance and refurbishment contractors working in pre-2000 buildings. ULPA15 filtration, sealed Type H disposal bags, 110V site voltage and 240V options. Sized for van carry-in and room-adjacent working. Used by refurbishment and fit-out contractors who specify H-Class as standard for pre-2000 building work. SKU MIDIHSV110 / MIDIHSV240, £899.99. View MIDI HSV →
V-TUF MAXi — 50L and 80L H-Class, 110V and 240V
High-capacity H-Class extraction for larger-scope refurbishment works where the volume of debris and dust requires a higher-capacity machine. Used by demolition, strip-out and major refurbishment contractors. 50L and 80L capacity options. From £799.99. View MAXi →
Asbestos surveys and the duty to manage
Before any refurbishment or maintenance work begins on a pre-2000 building, the duty holder (building owner or occupier) is required under CAR 2012 Regulation 4 to manage asbestos in the building — which includes having a current asbestos management survey and making it available to contractors before work starts. Contractors should ask for the asbestos register and survey before commencing any intrusive work in an older building. Where no survey exists, contractors should assume ACMs are present and work accordingly until a refurbishment and demolition survey has been carried out.
View the full construction and CDM 2015 hub → View the silica and RCS extraction page → View the HSE and COSHH compliance centre →
Trade accounts
V-TUF operates trade and contractor account terms for refurbishment, maintenance and specialist contractors. UK warehouse, UK technical support, spares held for every machine in current production.
Telephone: 01522 787978. Email through the contact page.