No — you should not attempt to clean up asbestos dust yourself, even with a HEPA vacuum cleaner. In New Zealand, disturbing and cleaning up asbestos is strictly regulated work that must be carried out by a licensed asbestos removalist. Doing it yourself puts your health and the health of your family at serious risk, and may also expose you to significant legal liability.
Why Asbestos Dust Is So Dangerous
Asbestos fibres are microscopic and, once airborne, can remain suspended in the air for hours. When inhaled, they lodge permanently in lung tissue and can cause serious, life-threatening diseases including mesothelioma, asbestosis, and lung cancer — often decades after exposure. There is no safe level of asbestos fibre inhalation, which is why WorkSafe NZ treats asbestos as one of the most significant workplace health hazards in the country.
What About HEPA Vacuums — Can't They Capture the Fibres?
It's a common misconception that a high-quality HEPA vacuum is sufficient protection. Here's why that thinking falls short:
- Standard household HEPA vacuums are not rated for asbestos. Asbestos work requires a vacuum that meets Class H (or equivalent) filtration standards specifically designed for hazardous dust — these are industrial units, not the kind sold at hardware stores for general home use.
- Vacuuming can make things worse. Running any vacuum over asbestos-containing material (ACM) can disturb settled fibres and launch them back into the air, dramatically increasing your exposure risk.
- Exhaust air is a hazard. Even with good filtration, improper use of a vacuum can spread contamination to other areas of your home.
- Disposal is a separate regulated process. Asbestos waste — including the vacuum bag, filter, and any PPE used — must be disposed of at an approved facility. You cannot simply put it in your household rubbish.
NZ Law: This Is Restricted Work
Under the Health and Safety at Work (Asbestos) Regulations 2016, asbestos removal is classified as restricted work in New Zealand. The rules are clear:
- Class A removal (friable asbestos or bonded asbestos over 10 m²) must be carried out by a licensed Class A removalist.
- Class B removal (bonded asbestos up to 10 m²) must be carried out by a licensed Class B removalist (or Class A).
- Homeowners doing their own DIY work are not exempt from these requirements when asbestos is involved.
WorkSafe NZ is the regulatory authority for asbestos in New Zealand. Breaching these regulations can result in significant fines.
How to Identify Asbestos in Your Home
Asbestos was commonly used in NZ homes built before 1990 in materials such as:
- Fibrous cement (fibrolite) cladding and roofing — very common in NZ
- Textured ceiling coatings ("popcorn" or stippled ceilings)
- Vinyl floor tiles and their backing
- Pipe lagging and insulation
- Eaves linings and soffits
If your home was built before 1990 and you suspect a material may contain asbestos, do not disturb it. Have it tested by an accredited laboratory or asbestos assessor before any work begins. BRANZ has useful guidance on identifying common ACMs in NZ residential buildings.
What You Should Do Instead
If you've already disturbed what you suspect is asbestos-containing material:
- Stop work immediately and leave the area.
- Keep others out — close doors and restrict access.
- Do not use any vacuum or attempt to sweep or wipe the area.
- Open windows carefully to ventilate, but avoid creating air currents that spread fibres further.
- Contact a licensed asbestos removalist as soon as possible. A qualified professional will assess the situation, contain the area, carry out safe removal, and arrange compliant disposal.
You can find licensed asbestos removal specialists in your area on tradedirectory.co.nz.
What a Licensed Removalist Actually Does
A licensed professional brings far more than just the right vacuum. They will:
- Assess and test the material before work begins
- Set up a containment zone with negative air pressure where required
- Use Class H industrial vacuums and wet suppression methods
- Wear appropriate respiratory protective equipment (RPE) and disposable coveralls
- Dispose of all waste at a council-approved asbestos disposal facility
- Provide a clearance certificate confirming the area is safe
For Class A removal, an independent licensed asbestos assessor must also be engaged to issue the clearance — this is a legal requirement under the regulations.
When to Call a Professional
You should call a licensed asbestos removalist any time you:
- Suspect you have disturbed asbestos-containing material during renovation or demolition
- Are planning any work on a pre-1990 home that involves cutting, drilling, sanding, or demolishing building materials
- Have found damaged or deteriorating material you think may contain asbestos
- Need a clearance certificate before re-occupying a space
Never attempt to manage asbestos dust or debris yourself. The short-term cost of hiring a professional is far outweighed by the long-term health consequences of exposure. Find a qualified asbestos removal specialist near you on tradedirectory.co.nz.
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