Fires start when a flammable or a combustible material combine together with a sufficient amount of oxidizer for instance oxygen gas or An additional oxygen-rich compound (though non-oxygen oxidizers exist, like chlorine),[56] is exposed to a source of warmth or ambient temperature over the flash point for the gas/oxidizer mix, https://allkindsofsocial.com/story5254724/not-known-details-about-fire-risk-assessor-cumbria