Portwest P431 Reusable Silicone Half Mask

The Portwest P431 half mask combines a soft silicone face seal with a balanced twin-filter arrangement.

Two bayonet connections distribute filter weight across both sides and help preserve the field of view. A front exhalation valve and four-point harness support comfort, while the mask disassembles for cleaning.

Filters are not included. Protection depends on the compatible filter selected, facial fit and measured workplace exposure.

KEY FEATURES

• Silicone face seal with adjustable four-point harness
• Dual bayonet connections for balanced filter positioning
• Front exhalation valve and disassemblable construction

SPECIFICATIONS AND STANDARDS

• EN 140:1998
• Manufacturer model P431; store family key P471
• Available in S/M and M/L manufacturer variants

USE AND SELECTION

• For professional use with suitable Portwest bayonet filters
• Select filters for the substance, gas, vapour or particle concentration
• Perform a seal check before every use

Check before purchase: Select size and filter through the risk assessment; do not wear with facial hair crossing the sealing area.