Handan Hengyong Protective & Clean Products Co., Ltd is a leading manufacturer and exporter specialized in all kinds of filter media, dust masks and work ***** factory was founded in 1989, incorporated in 1994 and located in Yongnian High-Teach Development Area of Hebei *****, our register capital is RMB50, 000, 000. There is 60, 000 square meter and over 1200 employees in our factory. We have been certified by ISO9001:2000 and ISO14001:2004. Our mask has conformed to NIOSH 42CFR84(approved by NIOSH/CDC in U.S.A.), EN149:2001(notified by BSI-CE 0086) and AS/NZS 1716:2003(certified by SAI Global and EN13034:2005(Type 5 & Type 6 certified by STFI in Germany). Welcome all friends home and abroad to visit our factory.We will always assure the best quality, first shipment and excellent service.</p>