Passive fire defense development elements are accustomed to resist, retard and isolate flames and also the related smoke and fumes: they do not in on their own extinguish flames therefore they are classed as 'passive security'. FireCell relies on “Hub & Cluster” technological innovation an EMS patented infrastructure which guarantees https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/