Detailed answer regarding Ceiling Fan Direction. During the summer, you want the air blowing directly on you so you will feel cooler from the wind chill effect (which is how fans cool you off). So stand under the fan and turn it up on high speed.
NRR STANDS FOR NOISE REDUCTION RATING. NRR (noise reduction rating) is a single number rating method which describes a hearing protection device (HPD) based on how much the overall noise level is reduced by the HPD. Most noise measurements in the industry are derived from the A-weighting scale.
November 10, 2015. Finding a super quiet central air conditioner is easy. Just look at the decibel (dB) sound rating. A lower dB rating means a quieter air conditioner. For example, you can see on Bryantâs website where you can compare their central air conditioners based on sound. As you can see in the above image, the 56 decibel air conditioner is quieter than a 66 decibel air conditioner. How much quieter? Letâs talk about that. Then weâll show you some of the quietest air conditioners on the market.