Helios Ventilatoren BLS 300/150/75-60 Air brick

For ventilation of trapped rooms to be protected against fire and smoke transmission. Prevents heat build-up through constant air exchange. Fire resistance F30 to F120 according to DIN 4102. Maintenance and revision-free, no movable Parts. Resistant to moisture, largely against oils, petrol and weak acids. Easy installation. Use in individual cases on the basis of a project-related component type approval (VBG).

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