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  2. How Often Should You Clean Your Air Ducts? Experts Explain - AOL

    www.aol.com/often-clean-air-ducts-experts...

    Air duct cleaning costs are determined by a variety of factors, including accessibility, vent locations, area of the home, and the size. The costs can range from $450 and $1000.

  3. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Air handling unit, used for heating, cooling, and filtering the air. Air cleaning and filtration removes particles, contaminants, vapors and gases from the air. The filtered and cleaned air then is used in heating, ventilation, and air conditioning. Air cleaning and filtration should be taken in account when protecting our building environments ...

  4. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

  5. Air handler - Wikipedia

    en.wikipedia.org/wiki/Air_handler

    An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. [1] An air handler is usually a large metal box containing a blower , furnace or A/C elements, filter racks or chambers, sound attenuators , and dampers . [ 2 ]

  6. 20 Ways to Lower Your Electric Bill This Winter

    www.aol.com/finance/20-ways-lower-electric-bill...

    The upcoming winter season is expected to be “wet and cold for most locations,” according to the 2024 Farmer’s Almanac. That means now is a good time to figure out how to lower heating costs ...

  7. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    Portable room air cleaners with HEPA filters can be used if ventilation is poor or outside air has high level of PM 2.5. [122] Air filters are used to reduce the amount of dust that reaches the wet coils. [citation needed] Dust can serve as food to grow molds on the wet coils and ducts and can reduce the efficiency of the coils. [citation needed]