More in IAQ & Ventilation

Hospitals contain many different types of environments, including public areas, sterilization facilities, soiled-laundry rooms, operating rooms, intensive-care...More

I must state our objections to the December Design Solutions article Pitot-Tube Technology Helps Maintain Proper Airflow in Fitness Facility, the intent...More

During the first morning meeting of the day, several supervisors suddenly jumped up and ran out with their pagers in hand. Five fully manned Fire Department New York (FDNY) fire trucks drove up to our high-rise building. The fire-alarm system indicated smoke at a top-floor air-handler duct smoke detector (DSD). No smoke was evident, so the problem counted as a false alarm. Unfortunately, FDNY charges about $500 each time it responds to a false alarm. The firefighters reset the system, and everything appeared to be fine. We checked out the DSD, and nothing was wrong with it. It was working exactly as specified....More

Natural air movement in an industrial plant is like the movement of a small boy. It is never completely still, does not seem to have any definite pattern,...More

Fabric duct is one of the fastest-growing segments of the HVAC air-distribution market, representing more than 5 percent of open-architecture-ductwork...More

During an assignment for a large municipality, I was asked to investigate indoor-air-quality issues in a newer building. The building was constructed...More

Air-handling-unit brochure A product brochure from Mainstream describes the company's custom-built air-handling units and replacement coils. The eight-page...More

For reasons of safety and health, not to mention litigation, consulting and facility engineers long have insisted on independent performance verification...More

Poor indoor-air quality (IAQ) is more than just a nuisance; it is costly. For example, total costs to the U.S. economy because of poor IAQ reach as high...More

Our firm received an assignment from the state to provide damper monitors on dampers contained in all of a developmental facility's cottages. These dampers...More

A large portion of a laboratory's space-cooling load is the result of heat produced by research equipment. If heat can be captured at its source, its...More