How to Make a Circular Saw Quiet – Noise Reduction

How dangerous noise for human health is! Yeah, the destructive effects of loud sound are known to us whether someone knows much or less, but none is unknown about sound pollution and its effect on our body. So, “how to make a circular saw quiet” is an urgent need of a woodworker. 
Please keeping in mind, you want to create an environment of work without noise, you have to take some steps, like buying a noiseless circular saw, and follow some strategies of how to make a circular saw quiet. So let’s know in detail：
Why Circular Saw Produce Sound

A significant part of the circular saws is made with a brush-type universal motor powered by A.C. or D.C. electricity. As the brush rubs on the slotted armature, they make gear train noise because the slotted armature is very noisy. So, it is clear that the noise is produced in the machine when a circular saw is run for cutting material. 
Circular Saw Noise Level
How loud is a circular saw? Before starting our main discussion, I want to make you known how much a circular saw makes noise. If you know the noise level, you will feel the dangerous effect and pay your best effort to make a circular saw quiet. 
Generally, a circular saw has a noise level of 110 decibels, while the highest hearing level of a human being is 85 decibels. Therefore, a Circular saw makes more noise than a train while running on the way producing 90 decibels sounds, and less than a race car, making noise of approximately 130 decibels. Now, the rest of the decision is yours whether you will make a circular saw quiet or not.
Reason for Using Universal Motors
A circular is carried by hand. So, it should be smaller and lighter to carry and handy. If manufacturers choose induction motor, it would be tremendous and can’t be impossible to carry. To make the device small size and lighter, universal motors are used to make a circular saw.
How do you reduce the noise on a circular saw?
To reduce the noise on a circular saw, you can use noise reduction shoulders. There is another way of lessening noise that can be done lower noise. But it is noticeable that noise reduction shoulders or vibration dampeners diminish the ability to cut depth. 
How many decibels is too loud?
85 Decibels. The maximum level of hearing capacity of a human being is 85 decibels. The researcher says if anyone is habituated to hear more than 85 decibels sounds, he may lose the power of hearing, and ultimately one day, he will lose hearing permanently. 
What is an acceptable dB noise level?
According to the E.N.T. specialist doctor, it will be safe for humanity if the sound level is under 70 decibel. But how much the level will increase the increasing sound will be the cause of hearing loss. When the level reaches 85dB, it damages our hearing power permanently.
What’s the quietest circular saw?
If you are looking for a quiet circular saw, you can choose Makita 5402NA, the quietest circular saw. The high-quality saw’s average noise is 87dB.though this saw produces less noise than others, it is still up to the scale of hearing capacity. So, it would be best if you take hearing protection
Finally
Without any hesitation, we have to acknowledge that the invention of the circular saw has appeared as a blessing to the carpenters and woodworkers. But every year, many people are becoming hearing loss and permanently disabled by the accident of circular, so you should know how to make a circular saw quiet and avoid the accidents.