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Half-masks for gases and vapours 3M 4251 / 400

Exhalation valve to reduce heat build-up, parabolic exhalation valve to reduce overheating. Comfortable hypoallergenic edge. Maintenance free. Offers protection from dangerous gases, vapours and dust. Main applications: spray painting, galvanic baths and working with solvents and resins. The protective pre-filter extends the life of the main filters.

Brand: 3M

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