A respirator with the wrong filter or a broken seal can let hazardous vapours straight through, and you may not smell them or feel any effect.

Learn how to match your respirator to the hazard, tell vapours from particulates, read cartridge colours, and choose between half-face, full-face and FFP masks.

Then practise the checks and seal tests to do every time you put one on, learn when to change filters and cartridges, and see how to clean and store your respirator so it keeps working.