Electronics air filters: 1.Fireproofing 2.RoHS Compliant 3.UL certified 4.High dust holding Electronics air filters offer high dust arrestance and low resistance when installed in electronics: SizeCustomizedFrameStamping aluminum alloy or according to client's requestMedium colorBlack, gray, green, yellowMedium porosity25-60PPICertificationsUL 94 HF-1, UL900 class 2,ISO 9001:2008,OHSAS 18001: ...