Tumble dryer fire risks
Many home fires are caused by the build up of fluff in tumble dryer filters. Always de-fluff your tumble dryer after use, don't leave it on whilst your out or over night when you have gone to bed. Leaving fluff in your tumble dryer also means it takes longer for your machine to dry your clothes. So as well as safety their is a financial incentive to keep your machine clean.
Remember to register your appliances even if you get them second hand, so you can be contacted about any possible dangers. As always check smoke alarms regularly.