Patent ID: 7877819

Claim:
Protective clothing with a protective function relative to chemical and/or biological contaminants, wherein the protective clothing has a multiple-layer design, wherein the multiple-layer design comprises an outer material and an inner material equipped with a protective function against chemical and/or biological contaminants, wherein the outer material has a gas-permeable construction and is formed by a flat textile material, the outer material being subjected to an oil-repellant and/or water-repellant finishing, wherein the protective clothing has at least one ventilation opening in said outer material having a slit-like construction and being reinforced against mechanical loading, wherein the profile of the ventilation opening has a horizontal construction when the protective clothing is being worn and wherein the ventilation opening is closed with a gas-permeable protective filter material sorbing chemical and/or biological contaminants, the protective filter material having a sorption material sorbing, adsorbing or absorbing chemical and/or biological contaminants, wherein the sorption material is fixed to a carrier having a three-dimensional carrier structure, said carrier being positioned between said outer material and said inner material.