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Old 18-01-2017, 04:51 PM   #9264
Join Date: Nov 2016
Posts: 262
looking for the quietest Air Con, both Daikin and Mitsubishi claim their products' decibels rating are as low as 19 dB, which one feels more quietest based on your experience?

It is difficult to provide you an answer as home owners do not have both air conditioners (FCUs) of the stated brand in the same operating condition for comparison.

The sound levels are tested in according to specific environment conditions. In general, 19dB is soft in relation to most environment sound. But again, some people may have sensitive hearing that can pick up very low dB level and frequency, for example young children.

Another consideration is the environment noise. For example, if you are living next to a road with consistent traffic, then, the noise from the traffic may cover up the noise from the FCU (even with the windows closed). And the 19 dB level is no more important.

You may wish to check this link on environment sound level:

The above are my opinion and hope that they are helpful.
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