TF1A non-powered air-purifying respirator

TF1A non-powered air-purifying respirator

      TF1A non-powered air-purifying respirator is composed of mask, breathing hose, filter and backpack. The mask is molded by injecting high-quality natural rubber, which can be divided into 2#, 3#, 4# and 5# helmet-type full face masks according to the head circumference. The product is of binocular structure, with the characteristics of comfortable wearing, reliable protection, and low respiratory resistance. It can be used in conjunction with the class-3 and class-2 filters filled with different reagents through the breathing hose.

      The product is suitable for personnel exposed in the working environment with toxic and harmful substance, such as in factories, mines, warehouses, seaports, military scientific research, anti-terrorism, fire-fighting, health and epidemic prevention, etc.

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

Technical requirements:

Protective time: The protective time of TF1A air-purifying gas mask depends on the performance of the selected filter.

Expiratory resistance ≤ 100 Pa (30 L/min)

Inhalation resistance ≤ 40 Pa (30 L/min)

Total field of vision ≥65%; binocular field of vision ≥24%; 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.