Handan Hengyong Protective & Clean Products Co.,Ltd. Handan Hengyong Protective & Clean Products Co.,Ltd.is a leading manufacturer and exporter specialazed 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-Tech Development area of Heibei Province.Currently,our register capatal is RMB30,000,000,the workshop area is 45,000 square meters and there are over 1200 emploees in our factory.We have been certified by iso9001:2000 and iso14001:2004.Our masks have conformed to NIOSH 42cfr84 (approved byNIOSH/CDC in U.S.A..),EN149:2001(notified by BIS-CE0086)andAS/NZS1716:2003(certified by SAI Global,Australia).Welcome all friend in mainland or abroad to visit our company.We will always assure the best quality,first shipment and excellent service. major products:nuisance dust masks niosh n95 masks en149:2001ffp1/ffp2/ffp3 masks as/nzs 1716:2003p1/p2 masks If you need our products or want to know our products in detail,contact me please!My name is Sophie.