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Want A Thriving Business? Focus On Silent generator!


From the noise it produces, the characteristic of the silent generator is its sound power and sound pressure value. In fact, whether it is a silent or open-frame generator, they are all measured in decibels (dB). Sound power refers to the noise emitted by a silent generator, but the sound pressure is always related to the location where the noise is measured. The farther away from the generator, the lower the sound pressure value.

Noise level

The noise level of the generator is the main factor in determining the model. Many areas have noise regulations that may be used by generators, especially at night. Noisy generators are not suitable for many applications, including camping, powering outdoor activities, and RVs. Most generators are marked with a decibel level. For every 10 decibel increase, the noise level will increase 10 times. The volume of a generator running at 70 decibels is ten times that of a generator running at 60 decibels.

  • 20 dB: birdsong, the rustling of leaves, library
  • 45 dB: computer
  • 56 dB: BISON inverter generator
  • 60 dB: Two people talking
  • 66 dB: BISON Silent Gasoline Generator
  • 70 dB: BISON Silent Diesel Generator
  • 72 dB: Professional gasoline generator
  • 78 dB: Commercial diesel generator
  • 80 dB: train
  • 90 dB: lawn mower
  • 100 dB: motorcycles, road traffic
  • 110 dB: disco, rock concert
  • 130 dB: plane takes off

What can make the generator quiet?

Generator type

The technology used and the type of generator are also indicators of engine running sound. In general, generators using inverter technology are the quietest, followed by home backup generators (when running on propane), and portable generators are the loudest.

Type of gasoline

Certain fuel-type generators run much quieter than others. For example, solar generators are almost silent. Diesel generators are the noisiest, followed by gasoline and propane.

Engine size

Generally speaking, the bigger the engine, the louder the running noise, which also means that the more powerful generator may make more noise than the smaller capacity generator.


The manufacturer can include several design details to reduce noise. Examples include mufflers, rubber sound-insulating materials, and sound-absorbing frames or shells. Of course, the different styles of these accessories will also affect the size of the noise.

Generator structure design

The exhaust pipe facing horizontally makes the loudest noise, and the generator with the exhaust pipe facing upwards will have a smaller sound because the sound waves propagate upward.

Application of silent generator

The silent generator is very suitable for outdoor busy areas (campgrounds, markets) or private places (houses, offices, companies) that need to avoid annoying sounds.

What is the quietest type of generator?

Quiet inverter generator. Inverter technology allows the manufacture of lightweight and efficient devices that provide the highest quality power. They are the quietest on the market, as well as excellent portability and low fuel consumption.

5.5KW silent diesel generator4.5KW silent genset

The BISON silent generator series is designed to provide reliable backup power for households or businesses that suddenly lose power. BISON offers a series of single-phase and three-phase silent generators for sale, which are very suitable for residential and commercial needs, ranging from 1500rpm to 3000rpm. BISON is a supplier of high-quality silent generators in China. We have stocks and also support customization. Our product line offers a variety of options to meet your power needs, and our team of experts will help you find a silent generator suitable for your application easily and cost-effectively.

* The DB value provided by all technical data of BISON silent generator is the sound pressure at 7m, that is, the average value of the sound pressure obtained in four directions 7 meters away from the generator.

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