Guangzhou daji medical science and technology co., ltd is  a modern company that independently develops, produces and sells professional  leukocyte reduction filter and  Protective mask, it was established in 207 located in Guangzhou economic and technological developing Zone ,main product have leukocyte reduction filter  ,3ply disposable protective mask ,and Kn95 disposable protective mask ,etc. ,all product are manufactured in ISO class 1000000 purification workshop and testing room , plus , our quality system is ISO13485 certificate and CE certificate