The 3M 4255+ Half Mask P3 is a ready-to-use, maintenance-free respirator designed to provide effective protection against hazardous vapours, gases and particulates often encountered when working with aerosol paints. Featuring an integrated filter system with A2 and P3 protection levels, it safeguards against organic vapours with boiling points above 65°C, as well as fine dusts, mists and paint particles. The lightweight, balanced design and soft, textured face seal ensure comfort and a secure fit, while the centrally positioned exhalation valve reduces heat and moisture build-up, making it suitable for extended use.

Features and Benefits

• A2 and P3 Integrated Filters: Protects against organic vapours, solvent fumes, fine dusts, spray mists and paint aerosols.
• Ready-to-Use Design: Maintenance-free with integrated filters—no replacement parts required.
• Lightweight and Comfortable: Soft facepiece material and adjustable head straps provide a secure, comfortable fit.
• Low Breathing Resistance: Efficient filter technology allows for easier breathing during extended wear.
• Exhalation Valve: Centrally located to reduce heat and moisture build-up inside the mask.
• Durable and Reliable: Designed to maintain performance throughout its service life before safe disposal.
• Certified Protection: Tested and approved to EN 405:2001+A1:2009 standards.

How to Use

Remove the mask from its packaging and adjust the head straps to achieve a secure and comfortable fit, ensuring the face seal sits correctly against the skin. Perform a fit check by covering the filters and inhaling gently—if the mask collapses slightly against the face, a proper seal has been achieved. Use the mask in environments where protection against organic vapours, solvent fumes and paint aerosols is required. Once breathing resistance increases or the filter elements become saturated, the mask should be safely disposed of and replaced with a new unit.