TF-213D air-purifying gas mask

      TF-213D air-purifying gas mask is mainly composed of mask and filter. The mask body is molded by injecting soft non-allergic elastic silica gels to ensure a comfortable match with face, without the contour edge compressing the facial nerve; reversely folded silica gel sealing ring enables the users to wear the gas mask for a long time; the gas mask has a large eye shield, with wide field of vision, good optical performance and impact resistance; the lens is made of high-performance polycarbonate materials to resist scratches and fog at low temperature, ensuring safer operation; the water blocking mask is made of silica gel materials to discharge warm exhaled breath downwards to ensure a clear field of vision for the lens while using the face mask; the six headbands, with proper elasticity, can be adjusted according to the needs of the wearer without compressing central nervous system; It can be directly connected with a single type or double types of filter cartridges or filter cottons to protect the gas mask users from various types of poisonous and toxic gases, vapors and particles.

      Such product conforms to relevant regulations of GB 2890-2022 Respiratory Protection - Non-powered Air-purifying Gas and Vapor Respirators.

Technical requirements:

Expiratory resistance ≤ 100 Pa (30 L/min)

Inhalation resistance ≤ 40 Pa (30 L/min)

Total field of vision ≥70%; binocular field of vision ≥55%; lower field of vision ≥ 35°

Inward leakage of mask ≤0.05%

Leak tightness of exhalation valve: The drop of negative pressure is not more than 500 Pa in 45 s when tested with 1180 Pa negative pressure.

      Note: It is strictly forbidden to use this type of gas mask under the condition of hypoxia. It is recommended to use long tube breathing apparatus, self-contained breathing apparatus or compressal air breathing apparatus.