The Portwest P431 Silicone Half Mask is a reusable respirator body for work that calls for respiratory protection. It is made from silicone and uses two bayonet filter connections, which spread the weight evenly across the face and keep a wide field of vision.
The support harness attaches to the rigid body of the mask, which helps prevent marks on the face and gives a more even seal. It takes down quickly for cleaning between uses. Filters are sold separately.
Key features
- Dual bayonet filter connections balance the weight of the filters and leave a wide field of vision
- Compatible with Portwest filters P902, P921, P941, P952 and P971, sold separately
- ABS filter holders keep the filters securely mounted
- Frontal exhalation valve lets exhaled air out of the mask
- 4-point plastic suspension harness fixed to the rigid mask body helps avoid marks on the face and is easy to clean
- Adjustable strap fastening lets you set the harness to suit your head
- Quick, easy disassembly makes cleaning straightforward
- Lightweight construction
Materials and performance
Silicone mask body with ABS filter holders and a plastic suspension harness.
Standards and protection
Certified to EN 140: 1998, the European standard for half masks and quarter masks used in respiratory protective devices.
Choosing filters
The mask is supplied without filters. Pair it with one of the compatible Portwest filters (P902, P921, P941, P952 or P971) chosen to match the hazard you are working with.
Care
Follow the care instructions on the label.




















