3M 4277 Maintenance Free Half Mask





Suitable For Many Applications Including 

Conventional Paints, Vehicle Manufacture, Chemical 

Manufacture And Handling, Paint And Varnish 

Manufacture.

Provides Protection Against Organic Vapours (Boiling 

Above 65°C And With Good Warning Properties) Inorganic 

And Acid Gases Up To 10 Times WEL Or 1000ppm, 

Which Ever Is Lower And 10 x WEL For Particulate

Typical Applications Include Electrolytic Processes,

Acid Cleaning, Metal Pickling And Metal Etching 

Conforms To EN405:2002 FFABE1P3D