Passive fire safety building components are used to resist, retard and isolate flames and the involved smoke and fumes: they don't in on their own extinguish flames therefore They are really classed as 'passive defense'. Excellent dust and moth resistance for easy, problems-cost-free routine maintenance; equipped to withstand shocks and https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/