The Portwest P311 is a moulded FFP3 respirator with an exhalation valve, supplied in a pack of 10. It is designed with low breathing resistance and a shape that suits most faces, and it is a good choice for work in hot and humid conditions.
The valve lets warm, moist air escape, so the inside of the mask stays more comfortable over longer periods. It is completely metal free, which makes it suitable where metal detection is in use.
Key features
- High performance exhalation valve reduces heat and moisture build-up inside the mask
- Low breathing resistance makes breathing easier while you work
- Soft internal foam gasket helps create a tight seal against the face
- Soft nose bridge gives a secure, comfortable fit across the nose
- Drop-down head strap design makes the mask easy to remove
- 100% metal free: non-magnetic, nickel free and ferrous free, so it is metal detector friendly
- Pack of 10 respirators
Standards and protection
Certified to EN 149:2001 +A1:2009 FFP3 (NR D). The D marking shows it has passed the optional dolomite clogging test, which gives more comfortable breathing and longer lasting filtration performance.
Metal detector friendly
The respirator contains no metal parts and is free of nickel and ferrous materials. This makes it suitable for workplaces that use metal detection equipment.
Care
Follow the care instructions on the label.



















