REHAU’s System 4500 windows and doors provide a number of valuable benefits to facilities managers and building owners. Among them are thermal performance and versatility. This product is also an affordable way to let in daylight and fresh air without the potentially costly pitfalls posed by other window materials.
from Odor Management Plan in Controlling Smoke Odor http://bit.ly/2D3wO5v
via http://bit.ly/2R7558e
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