So aside from the obvious things like a bottle of bleach or acid, you need to be careful of all the substances that COSHH covers, including:

• Gases – like carbon dioxide, methane, and environments that lack oxygen.
• Dusts – from textiles and paper particles, to tiny parts of soil and coal
• Mists – that come from neat oils or water-based fluids, often used to cool metals when they’re being made and shaped.
• Biological agents and germs that cause disease – this covers things like bacteria, viruses and parasites, which are often worked within laboratories, farming, refuse collection and sewage treatment.
• Liquids – such as cleaning products and pesticides.
• Fumes – such as sulphur dioxide from petrol fumes or burning coal.
• Vapours – like acetone, which is in cleaning products and certain nail varnish removers.
• And finally, Nanomaterials and technology – which are found in things like batteries, cosmetics, food products, coatings and anti-bacterial clothing.