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Fans & Ventilation Systems
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We have been working with ventilation systems for more than 30 years. We were there when "green building" began. Companies make all sorts of claims about performance, but the fact is that air motion can be measured, and if it is measured under similar conditions it is possible to compare one product to another. Independent laboratories such as those recognized by the Home Venilating Institute (HVI) have strict testing a verification criteria. If the product is HVI certified, you can be sure that what it claims for performance can be compared to another HVI certified product's performance claims.
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