MSA Duo-Twin Airline Respirator with Advantage 4200 Facepiece Ultravue Facepiece Part# 490143 Rope halogenated hydrocarbons and N2O do

halogenated hydrocarbons and N2O do not affect the indication

while ensuring strength and durability

back plate

NIST-traceable factory calibration across the full pressure and temperature range

Qualitative identification of

MSA Duo-Twin Airline Respirator with Advantage 4200 Facepiece Ultravue Facepiece Part# 490143 Rope halogenated hydrocarbons and N2O doMSA Duo Twin Airline Respirator with Advantage 4200 Facepiece Ultravue Facepiece Part# 490143 Can be used with particulate filters or chemical cartridges This combination air supplied air purifying respirator is designed for use with either particulate filters and or chemical cartridges. Provides respiratory protection against a variety of contaminants, making it popular for pharmaceutical, chemical, petrochemical and nuclear industries. Must be used