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  2. Weird sounds and smells in your home you should never ignore

    www.aol.com/weird-sounds-smells-home-never...

    The plastics, polymer and rubbers used to insulate appliances, fixtures and electrical outlets can emit a fishy smell when they heat up. If your house suddenly smells like low tide, start sniffing ...

  3. Heating, ventilation, and air conditioning - Wikipedia

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

    These air conditioning and heat pump devices move heat rather than convert it from one form to another, so thermal efficiencies do not appropriately describe the performance of these devices. The Coefficient of performance (COP) measures performance, but this dimensionless measure has not been adopted.

  4. This is the seriously disgusting reason your air conditioner ...

    www.aol.com/article/lifestyle/2019/07/19/this-is...

    If you don’t keep them clean, they can make the air in your house extremely stinky. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  5. Is your heater making you sick? How to avoid cold-like ...

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    The rating, developed by the American Society of Heating, Refrigerating and Air Conditioning Engineers, reports a filter’s ability to capture larger participles between 0.3 and 10 microns.

  6. 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]

  7. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    The infiltration rate is the volumetric flow rate of outside air into a building, typically in cubic feet per minute (CFM) or liters per second (LPS). The air exchange rate, (I), is the number of interior volume air changes that occur per hour, and has units of 1/h. The air exchange rate is also known as air changes per hour (ACH).