3M 4251+ reusable half mask respirator with A1P2 filters

The 3M 4251+ is a lightweight, maintenance-free half mask respirator with integrated filters. It is designed to provide respiratory protection during painting, sanding, gluing and cleaning work.

The A1 activated carbon filters help protect against certain organic gases and vapours released by solvent-based paints, adhesives and cleaning products. The P2 filters capture at least 94% of airborne particles and help protect against medium levels of fine dust and oil- or water-based mists.

The low-profile design provides a wide field of vision, while the soft face seal and adjustable straps help ensure a comfortable fit. Twin inhalation valves and the central 3M exhalation valve help reduce breathing resistance and the build-up of heat and moisture inside the mask.

The respirator is supplied fully assembled and ready to use. Its integrated filters cannot be replaced. The complete respirator can be used until the gas filters become saturated, the particulate filters become clogged or the product is damaged. A resealable storage bag is included for hygienic storage between uses.

Recommended applications:

Spray painting
Brush and roller painting
Manual and power-tool sanding
Working with solvent-based paints and adhesives
Metalworking and woodworking
Cleaning with solvent-based products

Technical information:

Manufacturer: 3M
Model: 4251+
Series: 3M 4000+
Product type: half mask respirator with integrated filters
Protection class: FFA1P2 R D
Gas and vapour protection: A1
Particulate filter class: P2
Particulate filtration efficiency: at least 94%
Filters: integrated and non-replaceable
Exhalation valve: yes
Standard: EN 405:2001 + A1:2009
Usage: reusable until the filters become saturated or clogged, or the product is damaged
Package quantity: 1 pc.
Resealable storage bag: included

Before use, read the manufacturer’s instructions, perform a fit check and ensure that the protection class is suitable for the specific contaminants and their concentration.