A portable device allowing the rapid aiding of individuals suffering from difficulty in breathing, movement and communication, in a situation of environmental risk in the form of toxic and contaminating agents, said device comprising a wrapping (1) of flexible material impermeable to gas, vapour, fumes, aerosol and dusts, a window (4) in said wrapping (1), hermetically closed by a flexible transparent material for the visualization of the inside thereof, a box-shaped body (10) in fluid commmunication with an extremity of said wrapping (1) and carrying a system for the filtering (11), feeding and pressurization of the air (12,13), and at least one exhaust valve (14) of the air in said wrapping (1).
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