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2. Smoke exhaust ductwork - Wikipedia

   en.wikipedia.org/wiki/Smoke_exhaust_ductwork

   Smoke exhaust ductwork, in Europe, is typically protected via passive fire protection means, subject to fire testing (typically to NBN EN 1366-8 [1]) and listing and approval use and compliance. It is used to remove smoke from buildings , ships or offshore structures to enable emergency evacuation as well as improved firefighting.

3. Duct leakage testing - Wikipedia

   en.wikipedia.org/wiki/Duct_leakage_testing

   Duct leakage test in the US. A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating, ventilating and air-conditioning (HVAC) ductwork. A duct leakage tester consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow.

4. Air purifier - Wikipedia

   en.wikipedia.org/wiki/Air_purifier

   An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

5. Fire damper - Wikipedia

   en.wikipedia.org/wiki/Fire_damper

   Interior of German mechanical fire damper inside of a galvanised steel duct. Fire dampers (or fire shutters) are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent and isolate the spread of fire inside the ductwork through fire-resistance rated walls and floors. [1]

6. 11 Things You Can Clean With a Magic Eraser—and 6 You ... - AOL

   www.aol.com/lifestyle/11-things-clean-magic...

   Rinse each section with clean water as you go to prevent residue from drying. This technique, Palmer notes, is also perfect for shower walls, bathtubs, subway tile, and bathroom sinks.

7. 'I needed to return to work': Florida condo owners face ... - AOL

   www.aol.com/finance/needed-return-florida-condo...

   Per the new Florida law, all three-story-plus condo buildings and at least 30 years old must undergo a mandatory engineering assessment before Dec. 31, 2024. Condo associations must also shore up ...