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4255+ maintenance-free gas and vapour half mask with FFA2P3R D valve 3MK4255+ 3M
3M 4255+ FFA2P3R D gas and vapour half mask, ready-to-use integrated respiratory protection. High-performance filters with high-efficiency exhalation valve.
Internal SKU: 3MK4255+
- Brand
- 3M
- Reference
- 3MK4255+
49,13 €58,96 € TTC
- Direct shipping from supplier
- Tracking number sent by email
FAQ 4255+ maintenance-free gas and vapour half mask with FFA2P3R D valve 3MK4255+
- What is the meaning of the FFA2P3R D classification?
- This designation indicates protection against FFA2 organic vapours, P3 particles, and R reusability with clogging resistance tested against dolomite dust D. The mask is therefore certified for demanding environments requiring combined gas, vapour, and aerosol filtration.
- Does this mask require the purchase of separate cartridges?
- No, the 4255+ model is a ready-to-use device with filters integrated directly into the mask. This single-unit design simplifies maintenance and ensures perfect compatibility between the mask body and the filter elements.
- How should I determine when to replace the mask?
- Replacement must be carried out in accordance with the filter change schedule defined based on the concentration of contaminants on-site or as soon as breathing resistance becomes uncomfortable. The R marking attests to the mask's ability to be reused over several work shifts, subject to proper maintenance and storage.