Hearing protection for power saws: UK noise values

A saw starts, conversation stops, and the noise bounces off every hard surface in the workshop. That is when hearing protection for power saws stops feeling optional, yet the number on a product page may not tell you what you need. UK workplace law gives employers clear exposure values. Those values are not a universal legal rule for every person making a few cuts at home.

This page maps the Control of Noise at Work Regulations 2005 and the HSE rule of thumb already set out for this guide. It does not measure a saw in a lab, and it does not turn a reviewer calling a machine loud into a decibel figure. A qualifying purchase through our links, tag pcuk26-21, can earn a commission at no extra cost to you.

In short

For employees, the Control of Noise at Work Regulations 2005 use lower and upper exposure action values of 80 and 85 dB(A), with an exposure limit value of 87 dB(A). These are workplace exposure values, not automatic labels for a particular saw. A householder is not under the same employer duties. Wearing defenders remains a sensible response when saw noise makes ordinary close-range communication difficult.

Why saw listings do not settle the noise question

A familiar mistake is to ask how loud a circular saw is and then apply one figure to every machine. The material reviewed for the Bosch PKS 55 contains comments that call the machine loud, but it does not give a decibel measurement. This article will not turn that impression into a number.

That gap matters when you compare a hand-held Bosch circular saw, a fixed table saw and a Stihl chainsaw. A product category is not a measured exposure. The listing cannot establish what reaches the operator over a working day, and a reviewer saying the saw is very loud is not an instrument reading.

It is equally unsafe to reason backwards from the UK action values. Duties that change at 80 or 85 dB(A) do not prove that an unmeasured saw produces either level. Those figures help an employer act on exposure evidence. They do not fill a missing specification on an amazon.co.uk listing.

For a home buyer, do not wait for a perfect number before considering defenders, and do not repeat a guessed decibel figure as fact. For an employer, the standard is higher. A review can flag a risk. It cannot by itself complete the noise assessment.

The UK noise values and who they bind

The Control of Noise at Work Regulations 2005 set three figures that are often quoted without their legal context. The lower exposure action value is 80 dB(A). The upper exposure action value is 85 dB(A). The exposure limit value is 87 dB(A). They concern exposure at work and trigger duties for employers. They are not a blanket rule that every householder must wear ear defenders whenever a saw is switched on.

At the lower action value, an employer enters a formal duty framework that includes making hearing protection available and giving workers suitable information and training. At the upper action value, leaving the choice to workers is not enough: protection must be provided and used, and hearing protection zones become part of the control arrangements where required. The 87 dB(A) value is a limit, not a target to work up to.

The important word is exposure. Quoting a saw's sound figure, where one exists, is not the same as establishing a person's exposure across their work. A listing with no decibel figure does not remove the employer's responsibility to assess a noisy cutting task.

For DIY, the Noise Regulations bind employers rather than every private householder. They become directly relevant when someone employs a cutter, or controls work in which people may be exposed, not merely because a tool sits in a domestic garage. A private user can still use the values as context. Workplace action values are not a legal command that applies in the same way in every home.

How to judge saw noise without a meter

HSE offers a practical screening clue for construction work. If people have to shout to hold a normal conversation when they are about two metres apart, that can indicate noise around 85 dB. This is a rule of thumb. It tells you not to dismiss the noise. It does not turn your ears into a calibrated meter, and it does not establish daily exposure.

If a circular saw starts and another person two metres away cannot hear normal speech, treat that as a reason to stop assuming the task is harmless. A home user can put on suitable hearing protection before continuing. An employer should move from that warning sign to an assessment, rather than writing 85 dB into a record as though it had been measured.

The surroundings also stop the shout test from being a universal answer. A hard-walled room may feel very different from the same conversation outdoors, and the sources used here do not provide numbers for either situation. The clue identifies concern. It does not quantify the gap between a particular circular saw, table saw or chainsaw and a legal value.

Do not claim that a cordless motor makes the issue disappear. There is no measured basis here for treating cordless saws as exempt from the hearing-protection question. Familiarity with a loud saw is not exposure evidence.

Hearing protection comes after quieter controls at work

For an employer, ear defenders are part of the answer, not the whole noise-control plan. HSE construction guidance puts quieter processes and other ways of reducing noise ahead of simply handing out personal protection. Defenders depend on selection and consistent use. Reducing noise at source addresses the exposure before it reaches the worker.

Start with the job rather than the accessory. Ask whether the cutting process can be made quieter, whether a different method can reduce the noise, and whether people who do not need to be near the cut can be kept away. The sources used here do not rank particular saw models by decibel output, so a quieter-tool decision needs evidence beyond a retail category.

Residual risk is where defenders become necessary. At the relevant workplace exposure values, the employer must provide the protection and make sure the arrangements work. At the upper action value, that includes ensuring it is worn and using hearing protection zones where appropriate. A sign on a workshop entrance does not compensate for failing to reduce the noise first.

The assessment has to deal with the actual work and the actual exposure. A broad instruction to wear defenders around saws may be prudent. It does not by itself demonstrate compliance with the Control of Noise at Work Regulations 2005.

What a home user can do

You do not need to act as an occupational hygienist before making a cut. If starting the saw stops ordinary communication at close range, put on hearing protection. Waiting for a product listing to supply a missing decibel figure does not make the cut quieter.

Make that decision before the blade touches the timber. Defenders left across the room are easy to skip once the workpiece is clamped and the cut line is marked. Put them with the saw setup so that protection is part of preparing the task.

Keep two conclusions apart. The 80 and 85 dB(A) workplace values are employer action values, so they do not legally bind every DIY user in the same way. That legal split is also not evidence that a home cut is harmless. Law and sensible personal protection answer different questions.

A circular saw, a table saw and a chainsaw belong in the same conversation because each can create an obvious noise concern. This article does not establish one measured figure for any of them. Choose protection for the task and the noise you encounter, without inventing a model-specific number.

If you employ someone to do the cutting, the position changes. Use the HSE framework: assess exposure, reduce noise through quieter methods, provide information and training, and use hearing protection and zones where the action values require them. Dust is a separate exposure. Wood dust from power saws is not settled by ear defenders.