3M 4255+ Half Mask Respirator FFA2P3 RD EN 405:2001, 1 Piece

The 3M 4255+ is a maintenance-free half mask respirator with integrated A2 gas and P3 particle filters, compliant with EN 405:2001. Designed for protection against organic gases and vapours (boiling point >65°C) as well as very fine toxic dusts, fumes, and oil/water-based mists. The RD (Reusable Dolomite) classification allows extended use until filter exhaustion.

Advantages

Low-profile design for improved peripheral vision; soft, non-allergenic TPE material for comfort; adjustable head cradle and neck straps; exhalation valve reduces heat and moisture build-up; ready-to-use with no maintenance required.

Suitable for

• Painting and varnishing
• Solvent handling
• Chemical processing
• Manufacturing
• Agriculture

Key specifications

• Respirator Type: Half Mask
• Filter Type: Integrated (Maintenance-Free)
• Protection Class: FFA2P3 RD
• Gas/Vapour Protection: A2 (Organic gases and vapours with boiling point >65°C)
• Particle Protection: P3 (Very fine toxic dusts, fumes, oil/water-based mists)
• Standard: EN 405:2001
• Reusability: Reusable (RD tested)
• Exhalation Valve: Yes
• Material: Soft, non-allergenic thermoplastic elastomer (TPE)
• Head Harness: Adjustable head cradle and neck straps
• Size: One size fits most
• Shelf Life: 5 years from date of manufacture (unopened, stored correctly)

Recommendations

This respirator is suitable for use in environments with organic vapours and particulates. Always perform a fit test before use and replace when filter is exhausted or breathing becomes difficult.