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

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    Pacific Northwest National Laboratory
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    Manhattan darkened by smoke from Canadian wildfires.

    Highlights

    David Richardson/NCI

    A New System Measurement Procedure – 20 Years Later

    April 16, 2024
    David Richardson shares the origins of NCI's System Efficiency Ratio™ testing, and other NCI advancements in HVAC system performance testing.

    Copeland's Sensi Stat Integrates with Woosh Air Filtration System

    Jan. 4, 2024
    The partnership is part of Copeland’s continued commitment to expanding its smart home integrations with the newest technologies on the market,
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    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 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.

    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.

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    HVACR Products: August 2022

    July 26, 2022
    This month's product gallery highlights filters and cleaners, valves and fittings, and more.
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    Down to Business

    July 22, 2022
    A business management guide from Contracting Business.
    SKLafoca/iStock/GettyImagesPlus
    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

    New HVACR Products: Week of May 16

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