3M 4251 Plus FFA1P2 - Maintenance Free Respirator

3M 4251+ FFA1P2 R D Maintenance-Free Reusable Half Mask Respirator

The 3M 4251+ Maintenance-Free Half Mask Respirator offers effective, ready-to-use protection against organic vapours and hazardous particulates. Designed for simplicity and comfort, this mask features integrated cartridges and filters for maintenance-free operation, making it ideal for users seeking a practical, low-cost respiratory solution.

The enhanced exhalation valve reduces breathing resistance and heat build-up, improving comfort even in hot or humid conditions. Its soft, textured, non-allergenic face seal provides a secure fit, while the adjustable head cradle and easy-fastening neck straps ensure a stable, comfortable fit for extended wear. Lightweight and well-balanced, the 4251+ model fits easily with other PPE and allows freedom of movement during use.

Certified to EN 405:2001+A1:2009, the FFA1P2 R D model provides protection against organic vapours with boiling points above 65C up to 10 Workplace Exposure Limit (WEL) or 1000 ppm (whichever is lower), and 10 WEL for particulates. Supplied in a resealable hygienic bag for safe storage and reuse.

Key Features

Dual Protection: FFA1P2 R D filter provides protection against organic vapours (b.p. > 65C) and particulates such as dust, mists, and fumes.

Maintenance-Free Design: Integrated cartridges and filters mean no maintenance, spare parts, or filter replacements are needed.

Low Breathing Resistance: Enhanced exhalation valve reduces heat and moisture build-up for improved comfort and performance.

Comfortable Fit: Soft, non-silicone, non-allergenic face seal ensures a secure and comfortable fit for extended wear.

Adjustable Harness: Head cradle and neck straps provide a stable, customised fit for different head sizes.

Compact, Lightweight Design: Well-balanced construction improves compatibility with safety eyewear and hearing protection.

Hygienic Packaging: Supplied in a resealable bag for safe storage between uses.

Standards & Accessories

Certified to EN 405:2001 + A1:2009 for valved filtering half masks for gases, vapours, and particulates. Classified as FFA1P2 R D. Complies with PPE Regulation (EU) 2016/425 and UKCA requirements. Supplied with a resealable storage bag. Shelf life 3 years from production date when stored between ?20C and +25C, <80% RH.

Shipped from our Manchester, UK Facility

All 3M 4000+ Series respirators are fulfilled from our Manchester warehouse, ensuring authentic 3M products with fast and reliable UK delivery.

Product Type: Maintenance-free reusable half mask respirator

Model: 3M 4251+

Respiratory Rating: FFA1P2 R D

Filter Type: Integrated gas and particulate filters (organic vapours and particulates)

Protection Level: Up to 10 WEL or 1000 ppm (whichever is lower) for gases and vapours; 10 WEL for particulates

Valve: Centrally positioned exhalation valve for reduced heat and moisture build-up

Face Seal: Soft, textured, non-allergenic thermoplastic elastomer (non-silicone)

Harness: Adjustable head cradle and neck straps

Weight: Lightweight, low-profile design

Operating / Storage Conditions: ?20C to +25C, <80% RH

Shelf Life: 3 years from production date

PPE Category: III

Pack Quantity: 1

Case Quantity: 10

Commodity Code: 90200000