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2. I Tested the July A/C for a Month—Here Are the Pros and Cons

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   July A/C Noise Level: 50 dB (small), 54 dB (medium) The decibel level tells you how loud an air conditioner will run, which is important if it’s going in a room where you spend a lot of time and ...

3. Don’t Lose Your Cool—Here Are the Best Window Air ...

   www.aol.com/dont-lose-cool-best-window-193000344...

   The Best Window Air Conditioners. Best Overall: LG LW1517IVSM Window Unit. Best Value: Frigid FFRA051WAE Window Air conditioner. Quietest: Midea MAW12V1QWT. Easiest to Set Up: July Window Air ...

4. The Best Window Air Conditioners, According to ... - AOL

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   Friedrich Chill Premier 10000 BTU Smart Window Air Conditioner CCF10A10A. Best for: Large rooms. This model can cool a 400- to 500-square-foot space with ease thanks to its 10,000 BTUs and eight ...

5. Ambient noise level - Wikipedia

   en.wikipedia.org/wiki/Ambient_noise_level

   Ambient noise level is measured with a sound level meter. [4] It is usually measured in dB relative to a reference pressure of 0.00002 Pa, i.e., 20 μPa (micropascals) in SI units. [5] This is because 20 μPa is the faintest sound the human ear can detect. [5] A pascal is a newton per square meter. The centimeter-gram-second system of units ...

6. Sound reduction index - Wikipedia

   en.wikipedia.org/wiki/Sound_Reduction_Index

   Sound reduction index. The sound reduction index is used to measure the level of sound insulation provided by a structure such as a wall, window, door, or ventilator. It is defined in the series of international standards ISO 16283 (parts 1-3) and the older ISO 140 (parts 1-14), or the regional or national variants on these standards.

7. Sound transmission class - Wikipedia

   en.wikipedia.org/wiki/Sound_transmission_class

   Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. Outside the US, the ISO Sound Reduction Index (SRI) is used. The STC rating very roughly reflects the ...