What is the normal noise level of the air conditioner

The novelties of climatic technology amaze with their quiet operation. This indicator is one of the main marketing moves of manufacturers in the fight against competitors. To reduce the noise level of the air conditioner, the shape of the impeller is changed, the motors, the air flow pattern, the design of the grilles and heat exchangers are being refined. The result of all the innovations is the production of air conditioners with low noise levels - only 19 decibels in sleep mode. For this, a silencer was installed at the outlet of the evaporator. The cost of the equipment has grown dramatically. But does this innovation make sense?

What is Low Noise Air Conditioner

What is the normal noise level of the air conditionerAt a distance of 3 meters, continuous noise during the operation of the air conditioner can be heard by the human ear if its level is 22 decibels or higher. Thus, lowering the level below 20 decibels does not make any practical sense. So, at 30 decibels, a healthy person can sleep normally. This is the volume of the ticking alarm clock. 35 decibels - the volume of a conversation in an undertone, it may well wake up a sensitive person.

On average, the noise during operation of a middle class air conditioner is 21 - 26 decibels (sleep) and 26 - 31 decibels (intensive). If we compare the noise level of various sounds, then 26 - 29 decibels is the noise of an office on a working day.

It makes sense to purchase an air conditioner with a low noise level only in an apartment or a residential cottage.

The quietest are inverter models. The more expensive the equipment, the quieter it works. The advantage of inverters is that the temperature in the system does not change abruptly. Therefore, there can be no gurgling, hiss and clicks in a working inverter.

Air conditioner noise measurement

When buying an air conditioner, the consumer is guided by the numbers indicated in the leaflets. But they are not entirely objective, since the performance indicators are written at the lowest impeller speeds. Whereas usually the rotation speed is average or the highest. And the noise level is correspondingly higher. More detailed information is indicated in the catalog of air conditioners.

The noise level specified by the manufacturer is measured in an anechoic room. The walls here do not reflect sounds. On the other hand, in a living room, reflected from the walls, the noise level of the air conditioner will increase by 2 - 4 decibels.

Noise of the outdoor unit of the air conditioner

When talking about air conditioners with a low noise level, they often mean the operation of the indoor unit. Quiet operation of the outdoor unit is no less important for the consumer. So, it should be in the range of 44 - 55 decibels.

Cheap low-quality air conditioners make much louder noise, and this applies more to the outdoor unit than to the indoor unit.

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