3M 6009S Mercury Vapor/Chlorine Gas Mask Filter – NIOSH Approved Binoculars & Monoculars They’re made using special filtration

They’re made using special filtration media and grade 16 filter paper

With a quick-setup central-support frame

Rope pack loop/lid attachment

and reused

3M 6009S Mercury Vapor/Chlorine Gas Mask Filter – NIOSH Approved Binoculars & Monoculars They’re made using special filtrationProtect yourself from hazardous airborne contaminants with the 3M 6009S Mercury Vapor Chlorine Gas Mask Filter. Designed for industrial and emergency preparedness, this NIOSH approved filter provides reliable protection against mercury vapor, chlorine, sulfur dioxide, and certain particulates. NIOSH Approved Protection Defends against mercury vapor, chlorine gas, and sulfur dioxide. Passive End of Service Life Indicator (ESLI) Alerts when replacement