Executive standard: GB2626-2019 KP95

●The initial load filtration efficiency>99% The load filtration efficiency>98%

●Expiration resistance <80Pa Inspiration resistance <100Pa

●Dust holding capacity: initial load ventilation resistance<100Pa, filtration efficiency>99%; loaded with 200mg particulate matter, ventilation resistance<115Pa, filtration efficiency>98%

●For the protection of oily particles

Industry standard: filtration efficiency>95%, exhalation resistance<210Pa, suction resistance<210Pa