Semi-mask for reusable respirator 4251+ FFA1P2 - 3M 7100113098

3M™ 4000+ Series Maintenance-Free Reusable Respirators are a family of immediate-use respirators with integrated cartridge and filters.

The new valve reduces breathing resistance on exhalation, and the soft, silicone-free facepiece provides a hypoallergenic seal to the face.

Resealable pouch included, practical hygienic storage and carrying case.

Effective, easy-to-use, maintenance-free respiratory protection with 3M™ 4000+ Series Maintenance-Free Reusable Respirators.

New valve reduces breathing resistance on exhalation to provide even greater comfort.

The 4000+ Series respirator features a soft textured, hypoallergenic, silicone-free facepiece and offers protection from gases, vapors, and particulates.

Lightweight, balanced construction with a central exhalation valve helps reduce heat buildup and provides easier breathing, even at high temperatures.

Built-in filters are maintenance-free: they are used until the replacement program indicates that they need to be replaced or when the filters are clogged, and therefore need to be disposed of.

The adjustable harness makes it easily adaptable to heads of different shapes and sizes.

The low-profile design promotes wide peripheral vision, and the two large activated carbon filters ensure low breathing resistance.

Resealable bag included, convenient hygienic storage and carrying case.

*Resistance to exhalation of 3M™ 4000+ reduced to more than 30% for peak exhalation flows of 120 lpm and more than 35% for 160 lpm compared to the 4000 Series.

Results measured by 3M in 2017 under laboratory conditions.

Respiratory rates shown as examples only.

Key Features

• New valve reduces breathing resistance on exhalation for greater comfort

• Lightweight and balanced construction

• Integrated filters are ready-to-use and maintenance-free

• Soft, snug-fitting facepiece made of hypoallergenic textured material

• Easy-to-adjust nuchal harness and neck elastics

• Centrally located exhalation valve helps reduce heat and moisture buildup

• Available in four versions

• Resealable pouch included, convenient hygienic storage and carrying case

• Resealable pouch included, convenient hygienic pouch for storage and transportation

Recommended applications

• For use in hazardous industrial environments