What air testing is
A pump draws air through a filter for a set time and the filter is analysed in a laboratory to count fibres. It is used to check air quality in specific situations, such as after an incident or at the end of removal work.
What clearance means
After licensed removal, a clearance process checks that the area is visibly clean and that fibre levels are acceptable before it can be reoccupied. It is carried out by someone independent of the removal contractor.
What it is not
- It does not tell you whether a material contains asbestos. That needs a sample analysed.
- A single air test does not prove a whole building is safe.
- Home air test kits are no substitute for professional sampling.
When you might need it
After licensed removal work, after a disturbance incident in an occupied area, and in some commercial settings. A contractor can tell you if it is needed for your job.
This guide is general information. It is not a survey and cannot confirm the presence or absence of asbestos in your building.
