Handan Hengyong Protective & Clean Products Co., Ltd., is a leading manufacturer and exporter specialized in all kinds of filter media, dust masks and work garments. Our factory was founded in 1989, incorporated in 1994 and located in Yongnian High-Teach Development Area of Hebei Province. Currently, 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.