Product
The 3M 4279+ (Ref: 4279-1) is a reusable half-face respirator mask with integrated ABEK1P3 filters, designed to protect against a broad spectrum of gases, vapors, and fine particles in industrial, chemical, and maintenance environments.
Specifications
- Equipped with two large activated carbon filters, two inhalation valves, and one exhalation valve for reduced breathing resistance and improved comfort during extended wear
- Provides ABEK1 protection against organic vapors (boiling point above 65°C), inorganic gases, acid gases, ammonia and ammonia derivatives, combined with P3 particulate filtration capturing 99% of fine dust and mist particles at high concentration levels
- Compliant with European standard EN 405:2001 + A1:2009, classified FFABEK1P3 R D (CE 2797, UKCA 0086), confirming reusability (R) and low breathing resistance (D) as per dolomite clogging test
- Blue and white color-coded design for easy identification of filter type and protection level
- Lightweight construction with an adjustable head harness and soft facial seal for a secure, comfortable fit across a range of face shapes
- Supplied with a resealable storage bag to maintain filter integrity and hygiene between uses
Usage
Place the respirator over your nose, mouth, and chin, then adjust the head straps for a snug seal. Perform a fit check before each use by covering the filters and inhaling to confirm no air leaks around the face seal. Replace the mask when breathing becomes difficult due to filter saturation or clogging, or if any physical damage is observed. Store the mask in the included resealable bag after each use to preserve filter life.
FAQ
- How long can the 3M 4279+ mask be used before replacement? The mask can be reused multiple times until the gas filters become saturated (noticeable by odor or taste breakthrough), the particulate filters become clogged (increased breathing resistance), or the mask is physically damaged.
- What types of hazards does the ABEK1P3 rating protect against? ABEK1 covers organic vapors (A), inorganic gases (B), acid gases (E), and ammonia and its derivatives (K), each at concentration levels up to 1000 ppm. P3 filtration provides 99% efficiency against fine particles, dust, and mists.
- Can the filters be replaced separately? No. The 3M 4279+ features integrated, non-replaceable filters. Once the filters are spent or the mask is damaged, the entire unit must be replaced.
- How should the mask be stored between uses? Store the mask in the included resealable plastic bag in a clean, dry location away from direct sunlight and contaminants. This helps maintain filter performance and overall hygiene.
- Is this respirator suitable for use in environments with oxygen deficiency? No. This mask is a filtering respirator and must only be used in adequately ventilated environments with a minimum oxygen content of 17% by volume. It is not suitable for use in oxygen-deficient or immediately dangerous to life or health (IDLH) atmospheres.
mvm-dt-2026-03
