Life safety rope is low-stretch (static) kernmantle rope built to hold a person in rescue, fire service, rope access and fall protection systems.
Static rope stretches very little under load, which makes raising, lowering and hauling systems efficient and predictable. It is not designed to absorb the energy of a lead-climbing fall; use dynamic climbing rope for that.
When choosing a life safety rope, compare diameter (it must match your descenders and rope grabs), minimum breaking strength, elongation, sheath material for heat and abrasion, and the standard it is certified to. NFPA 1983 is the standard for life safety rope used by fire and emergency services.