• IAQ & Ventilation

    Management of airflow and reduction of impurities from air circulating in homes and buildings.

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    Pacific Northwest National Laboratory
    Contracting Business/Kelly Faloon
    Photo 280436684 © Cameron Hughes | Dreamstime.com
    Manhattan darkened by smoke from Canadian wildfires.
    Manhattan darkened by smoke from Canadian wildfires.
    Manhattan darkened by smoke from Canadian wildfires.
    Manhattan darkened by smoke from Canadian wildfires.
    Manhattan darkened by smoke from Canadian wildfires.
    Contracting Business/Kelly L Faloon
    Ahr2023 School Iaq
    Ahr2023 School Iaq
    Ahr2023 School Iaq
    Ahr2023 School Iaq
    Ahr2023 School Iaq

    Highlights

    265710140 © Ibrester | Dreamstime.com
    Los Angeles Dreamstime L 265710140
    Los Angeles Dreamstime L 265710140
    Los Angeles Dreamstime L 265710140
    Los Angeles Dreamstime L 265710140
    Los Angeles Dreamstime L 265710140

    Maximize Your Commercial HVAC Business with Indoor Air Quality Services

    Sept. 26, 2023
    Awareness of commercial building IAQ is higher than it's ever been. Position your commercial HVAC business as a provider of indoor air quality solutions.
    Ashrae Title Page 241
    Ashrae Title Page 241
    Ashrae Title Page 241
    Ashrae Title Page 241
    Ashrae Title Page 241

    ASHRAE Standard 241 Ushers in New Era of Air Filtration for Buildings

    July 21, 2023
    Far-reaching standard establishes stronger airborne infection risk mitigation standards for buildings.
    NCI
    You can use a scoop takeoff on branch ducts that want to act like returns and guide airflow into the duct.
    You can use a scoop takeoff on branch ducts that want to act like returns and guide airflow into the duct.
    You can use a scoop takeoff on branch ducts that want to act like returns and guide airflow into the duct.
    You can use a scoop takeoff on branch ducts that want to act like returns and guide airflow into the duct.
    You can use a scoop takeoff on branch ducts that want to act like returns and guide airflow into the duct.

    Why Some Supply Registers Act Like Return Grilles

    July 3, 2023
    Let’s look at the field conditions necessary for this problem, why it happens, and a simple solution.
    Armstrong
    A classroom following installation.
    A classroom following installation.
    A classroom following installation.
    A classroom following installation.
    A classroom following installation.

    School Improves Indoor Air Quality and Lighting

    March 28, 2023
    Allergy and asthma triggers were reduced and light levels in the spaces more than doubled from 116 to 253 lux.
    National Comfort Institute
    To measure static pressure, you’ll need a static pressure tip and tubing to transfer pressures to the manometer. Don’t cut corners, and stick the open end of the tube into the airstream. Otherwise, you’ll get goofy readings.
    To measure static pressure, you’ll need a static pressure tip and tubing to transfer pressures to the manometer. Don’t cut corners, and stick the open end of the tube into the airstream. Otherwise, you’ll get goofy readings.
    To measure static pressure, you’ll need a static pressure tip and tubing to transfer pressures to the manometer. Don’t cut corners, and stick the open end of the tube into the airstream. Otherwise, you’ll get goofy readings.
    To measure static pressure, you’ll need a static pressure tip and tubing to transfer pressures to the manometer. Don’t cut corners, and stick the open end of the tube into the airstream. Otherwise, you’ll get goofy readings.
    To measure static pressure, you’ll need a static pressure tip and tubing to transfer pressures to the manometer. Don’t cut corners, and stick the open end of the tube into the airstream. Otherwise, you’ll get goofy readings.

    Four Airflow Problems You Can Easily Discover with Static Pressure Testing

    Feb. 20, 2023
    Static pressure testing makes you a better technician or salesperson and exposes the problems behind many customer complaints.

    Recommended

    Play the HVAC Service Bracket Challenge!

    March 12, 2024
    Which HVAC service procedure is, in your opinion, "most important"?
    SKLafoca/iStock/GettyImagesPlus
    Interstate Traffic
    Interstate Traffic
    Interstate Traffic
    Interstate Traffic
    Interstate Traffic

    Visualizing the 'Traffic' of Airflow

    June 17, 2022
    Vehicle traffic on a busy road is a perfect analogy to aid understanding of the way airflow behaves inside a duct system.
    AprilAire
    Model 1830 Dehumidifier
    Model 1830 Dehumidifier
    Model 1830 Dehumidifier
    Model 1830 Dehumidifier
    Model 1830 Dehumidifier

    New HVACR Products: Week of May 16

    May 20, 2022
    This week's gallery highlights humidifiers/dehumidifiers, air handlers/blowers, and louvers/dampers.
    May 4 Gallery Collage
    May 4 Gallery Collage
    May 4 Gallery Collage
    May 4 Gallery Collage
    May 4 Gallery Collage

    New HVACR Products: Week of May 2, 2022

    May 4, 2022
    This week's gallery spotlights residential ERVs, a carbon dioxide controller, a smart thermostat for air quality, a HEPA/carbon filtration module, a spot cooler and digital scroll...
    Yeti Slider
    Yeti Slider
    Yeti Slider
    Yeti Slider
    Yeti Slider

    Win a Yeti Cooler, JBL speaker, or Holy Stone drone!

    April 25, 2022
    Contracting Business' "HVACR & Plumbing Product Showcase" is live, showing tons of cool products! We're giving away Yeti coolers, JBL speakers, and Holy Stone drones, too - just...