Abstract: A device associated with a gas mask suitable for introducing liquid substances to the user of the mask. The liquid substances are contained in a container provided with a penetrating or syringe-shaped nozzle. The device comprises a tubular conduit inside the mask having at least one elbow portion elastically deformable from a first idle position to a second position at or adjacent the user's mouth and vice versa, respectively, when the penetrating nozzle is introduced inside the conduit through the entire elbow portion and withdrawn from the same elbow portion.

Abstract: A device for protecting the head and respiratory organs is disclosed comprising a casque having a transparent bubble-screen, a headgear made of a flexible cellular material placed inside the casque, an electrically powered ventilating device for forcing in filtered air for respiration, at least one container for holding a filtering block, the said device comprising also a battery, and at least one exhaust valve, and wherein the said headgear comprises slots for housing at least the ventilating device for forcing the filtered air for respiration, and placed in such a manner that the weight of the ventilating device rests directly on the headgear itself.