Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
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PPE Testing Equipment
TPP Thermal Protection Tester
Heat Radiation Tester
Heat Contact Machine
Heat Transmission Resistance Tester
Against Molten Metal
Electrostatic Charge Attenuation Tester
Dry State Lint Tester
Blood Penetration Resistance Tester
Sweating Guarded Hot Plate
Impact Penetration Tester
Dry Microbial Penetration Resistance Tester
Wet-resistant Bacterial Penetration Tester
Static Decay Tester
Fabric Friction Electronic Charge Density
Universal Test Machine
Tensile Test Machine
Martindale Tester
Humidity Test Chamber
Types and standard division methods of mask effect
2022-10-17
Gester Instruments
375
The filtration efficiency of the mask refers to the filtration efficiency of the meltblown. Because meltblown has the characteristics of filtering dust, particulate matter, dust, pollen and so on. At present, there are several filtration efficiencies as follows: 1. BFE95 explanation: detected at a flow rate of 32 liters, the filtration effect of 3-micron bacterial particles reaches 95%. Gram weight: 18-30g2, BFE99 Explanation: Detected at a flow rate of 32 liters, the filtration effect of 3 micron bacterial particles reaches 99%. Weight: 20-30g3, VFE99 Explanation: Detected at a flow rate of 32 liters, the filtration effect of 3-micron virus particles reaches 99%. Gram weight: 25-30g4, PFE99 Explanation: Detected at a flow rate of 32 liters, the filtration effect of 0.1 micron particles reaches 99%. Gram weight: 24-30g5, KN90 Explanation: Detected at a flow rate of 55 liters, the filtration effect of 0.3 micron solid particles reaches 90%. Gram weight: 30-50g6, N95 Explanation: Detected at a flow rate of 85 liters, the filtration effect of 0.3 micron solid particles reaches 95%. Gram weight: Double layer 50g7, N99 Explanation: Detected at a flow rate of 85 liters, the filtration effect of 0.3 micron solid particles reaches 99%. Gram weight: double layer 80g8, FFP1 explanation: equivalent to the standard of N90. Gram weight: 50g9, FFP2 explanation: equivalent to N95 standard. Gram weight: 50g10, KN90: Filtration efficiency:≥90%11, KN95: Filtration efficiency:≥95%12, KN100: Filtration efficiency:≥99.97%13, KP90: Oily Filtration Efficiency:≥90%14, KP95: Oily Filtration Efficiency:≥95%15, KP100: Oily Filtration Efficiency:≥100%
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QUANZHOU GESTER INTERNATIONAL CO.,LTD gains certificates of ISO 9001, 3A and SGS Audited supplier etc. with advanced design concept, excellent manufacturing technology and strict quality control.
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