VAJEN SMOKE HELMET. The Vajen Bader Smoke-Protector has long been known to the fire department officials a« an excellent device for use in figthing fires in cellars or places where smoke and fumes render the situation difficult or dangerous. The illus trations show the device in its different forms. which will prove so sufficiently explanatory as not to need particular mention here. The Vajen protector is in use in a large number of fire departments, as well as in other establishments where the need of such an appliance is required. It is employed more especially in places using ammonia, and where other noxious fumes are thrown off. When worn according to directions, this particular helmet has proved an effectual harrier against all suffocating gases and vapors.