We would like to establish a long-term business relationship of mutual benefit with customers all circles and to become one of the most reliable Chinese supplier for the customers all over the world. We are willing to do our best to offer you perfect products, competitive price and satisfactory service. We sincerely hope you can visit our factory and see our production process. Welcome! Your inquiry will be highly welcomed and a win-win prosperous development are what we are expecting.
1) Filtration efficiency: under the condition of air flow (85 ± 2) l / min, the filtration efficiency of sodium chloride aerosol with median diameter (0.24 ± 0.06) μ m in aerodynamics shall not be less than 95%, that is to say, it shall meet the grade of N95 (or FFP2) and above. It can block the air-borne infectious factors with a diameter of less than 5 μ m or close contact with the infectious factors transmitted by droplets.
2) Suction resistance: under the above flow conditions, the suction resistance shall not exceed 343.2pa (35mmh2o).
3) When the sample is sprayed to the mask under the pressure of 10.9kpa (80mmHg), the inner side of the mask shall be free of penetration and other technical indicators.
4) The mask must be equipped with a nose clip, which is made of bendable plastic material with a length of more than 8.5cm.
5) Synthetic blood is sprayed at 10.7kpa (80mmHg) pressure to the mask sample, and there should be no penetration inside the mask.
Our company, customized for different needs. China 35mpa ar cryogenic tank producer - Victank, The product will supply to all over the world, such as: Sudan, Grenada, panama, Cologne, Our mission is "Provide Goods with Reliable Quality and Reasonable Prices". We welcome customers from every corner of the world to contact us for future business relationships and achieving mutual success!