protective mask to absorb spent bacterially contaminated air from the inside of the carrier and its protection against bacteria, viruses and pollen from the outside

摘要

protective mask to absorb the bacterially contaminated air of the carrier from the inside and its protection against bacteria, viruses and pollen from the outside, having a cast base structure (1),to cover mouth and nose and a separately insertable filter part (5),characterized by the fact that the base frame cast in one piece (1) consists of a soft, flexible and stretchable plastic material (2) is made of a piece in a flat form whose horizontal upper and lower frames (1.1, 1.2) are arranged horizontally over each other by longitudinal ladders arranged between these vertically. (1.3, 1.4, 1.5, 1.6, 1.7, 1.8) are connected to each other and form a coarse-meshed grid on both sides horizontally, symmetrically opposite,Each ear bottle (3) and, alternatively, at least one receptacle (4) is shaped and the base frame (1) must be individually adjusted when the protective mask is applied by means of horizontal stretching to the facial shapes of the respective wearer and be reduced to its initial position.