Dirty ductwork can harbor dust, pollen, mold spores, and bacteria. When the ventilation system runs, these contaminants are pushed into the breathable air space. TR6 establishes the testing intervals and cleanliness thresholds needed to protect building occupants from sick building syndrome and respiratory issues. 3. Fire Risk Management
– A scanned part catalog from a small supplier (e.g., Besa Fasteners Ltd., Besa Lighting) with internal product code TR6. besa tr6 pdf