3M 4255+ half mask respirator FFA2P3 R D

3M 4251+ is a maintenance-free reusable half mask with integrated FFA1P2 R D filters for protection against organic vapors and particulates. It is intended for painting, sanding and maintenance tasks in industrial and construction environments with moderate exposure levels.

General information

The 3M 4000+ series half mask is a ready-to-use respirator with permanently integrated filters. The key functional benefit is combined A1 and P2 level protection in a single unit without separate filter handling.

Suitability should be assessed based on exposure type and concentration; this model is designed for moderate exposure levels rather than high-risk environments.

Technical specifications

• PRODUCT TYPE: Maintenance-free reusable half mask
• FILTER TYPE: Integrated FFA1P2 R D filters
• PROTECTION CLASS: A1 (organic gases and vapors, boiling point > 65 °C) + P2 (medium efficiency particulate filtration)
• STANDARDS: EN 405:2001+A1:2009 (Valved filtering half masks for gases, vapours and particles)
• MATERIAL: Thermoplastic elastomer (TPE)
• CONSTRUCTION: Lightweight, low-profile and balanced design
• FACE SEAL: Soft, non-allergenic and silicone-free
• VALVE SYSTEM: Central exhalation valve with low breathing resistance
• FILTER MEDIA: Activated carbon and particulate filtration layers
• STRAPS: Adjustable head harness and neck strap
• STORAGE: Resealable storage bag

Benefits and differences compared to similar products

• Integrated filters reduce assembly steps and minimize configuration errors.
• Maintenance-free design lowers the need for spare filter management.
• A1P2 protection is suitable for moderate exposure applications without requiring higher-class filtration.
• Low-profile design supports field of vision and compatibility with other PPE.

Intended use

Suitable for users, supervisors and HSE functions in painting, solvent handling, sanding and general maintenance tasks where exposure includes organic vapors and moderate particulate levels. Typical environments include surface treatment, construction and light industrial work.

Not suitable for high exposure levels, highly toxic gases, oxygen-deficient atmospheres or applications requiring P3-level filtration or supplied air systems. Selection must be based on measured exposure levels and regulatory requirements.

Q & A

Is there a warranty?

Warranty terms are defined by the supplier or sales channel documentation.

What is the availability?

Availability is specified separately on the product page.

How are technical questions handled?

Technical inquiries are handled in writing based on application details and exposure conditions.

Delivery information

Delivery details are specified separately on the product page.

Delivery methods, lead time and store availability (Kerava and Turku) are provided separately on the product page.