Asbestos is a group of naturally occurring minerals that were widely used in building materials from the 1950s until the 1990s. It's made up of tiny fibres that are invisible to the naked eye, and when these fibres are disturbed, they can become airborne and inhaled. This can lead to serious health problems, such as lung cancer, mesothelioma, and asbestosis.

If your building was constructed before 2000, it's likely that asbestos was used in some of the building materials, such as insulation, ceiling tiles, and floor tiles. It's important to note that asbestos is only dangerous when it's disturbed and the fibres become airborne, so if the material is in good condition and not damaged, it may be safe to leave it in place. However, if you suspect that it's been disturbed or damaged, it's essential to get it removed by professionals.