--- title: "Understanding noise levels | uvex Knowledge hub" url: "https://www.uvex-safety.co.uk/en/knowledge-hub/how-much-noise-is-too-much-noise/" description: "It is essential to protect our ears from harmful levels of noise, but how do we know what is a “harmful level”?" date: 2018-07-03 modified: 2026-05-15 categories: - Hearing protection locale: en_GB --- # Understanding noise levels | uvex Knowledge hub ![Stay safe this summer](https://d3rbxgeqn1ye9j.cloudfront.net/images/Mxs0qzLCUty5jetgfS3jB8CnnG0Qvv1xAbHN18pqMRE/w:375/h:210/fn:Y3NtX3N0YXktc2FmZS10aGlzLXN1bW1lci0xOTIwXzY4MjMxYWYxYzU:t/cb:a08a1c7ddb56c34cb2fb3aa6c1947371346614cb/el:1/fq:jpeg:85:avif:70:webp:80/rt:fill/aHR0cHM6Ly9kM3JieGdlcW4xeWU5ai5jbG91ZGZyb250Lm5ldC9maWxlYWRtaW4vd3d3LnV2ZXgtc2FmZXR5LmNvLnVrL01lZGlhL2xhbmRpbmctcGFnZXMvc3RheS1zYWZlLXRoaXMtc3VtbWVyLTE5MjAuanBnPzE1MzA1MzExMDE "Stay safe this summer") How much noise is too much noise? =================================== Noise is part of daily life - from conversations and traffic to machinery and power tools. But when does sound stop being harmless and start putting your hearing at risk? Understanding how noise is measured, and what levels are considered unsafe, is essential for protecting hearing in both everyday and workplace environments. What is noise and how is it measured? --------------------------------------- Noise is measured in **decibels (dB)** - a logarithmic scale used to describe sound intensity. This means that small increases in decibels represent large increases in sound energy. For example: A normal conversation is around **60 dB** Busy traffic can reach **80–85 dB** Power tools and machinery often exceed **90 dB** ![Decibels (dB) logarithmic scale](https://d3rbxgeqn1ye9j.cloudfront.net/images/aTw95YcKuiGnS5gqtgzgRN8OSqEZfOQbvy93syzcSQw/w:345/h:151/fn:Y3NtX2RlY2liZWwtc2NhbGVfNWI0NGUwNDMxYQ:t/cb:e0f907271177f58e6fabb0b8b72201cdb58c9720/el:1/fq:jpeg:85:avif:70:webp:80/aHR0cHM6Ly9kM3JieGdlcW4xeWU5ai5jbG91ZGZyb250Lm5ldC9maWxlYWRtaW4vd3d3LnV2ZXgtc2FmZXR5LmNvLnVrL01lZGlhL2Jsb2cvaGVhcmluZy9kZWNpYmVsLXNjYWxlLnBuZz8xNzc4MjM3MjM2 "Decibels (dB) logarithmic scale") ### When does noise become dangerous? As a general rule, **noise above 85 dB** can begin to damage hearing over time - particularly with prolonged exposure. In the UK, workplace noise is controlled by the **Control of Noise at Work Regulations 2005**, which set key thresholds: - **80 dB (lower action level)**: Employers must provide information and training - **85 dB (upper action level)**: Hearing protection must be provided - **87 dB (exposure limit)**: Maximum legal exposure (with protection) These limits highlight an important point: It’s not just how loud a sound is - it’s how long you’re exposed to it. ### How long is too long? Because decibels are logarithmic, every increase of **3 dB roughly doubles the sound energy**, meaning safe exposure time is cut in half. For example: - **85 dB** → safe for ~8 hours - **88 dB** → ~4 hours - **91 dB** → ~2 hours - **94 dB** → ~1 hour This is why even moderately loud environments can become hazardous over a full working day. ![Noise safe exposure time ](https://d3rbxgeqn1ye9j.cloudfront.net/images/vdrpmFv-A2WO_gdW2SAt6hae4YZenAhOcyzLGoy7zvs/w:345/h:345/fn:Y3NtX3RpbWVfM2MyNGFhNGQwYg:t/cb:49a7d2bc6acf291e07cd2ccd33ecb9da171f6cd7/el:1/fq:jpeg:85:avif:70:webp:80/aHR0cHM6Ly9kM3JieGdlcW4xeWU5ai5jbG91ZGZyb250Lm5ldC9maWxlYWRtaW4vd3d3LnV2ZXgtc2FmZXR5LmNvLnVrL01lZGlhL2Jsb2cvaGVhcmluZy90aW1lLnBuZz8xNzc4MjM2NzIx "Noise safe exposure time ") | **85 dB** | City traffic | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8 hours | |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| | **88 dB** | Bulldozer | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 4 hours | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **91 dB** | Jazz concert | | | | | | | | | | | | | | | | | 2 hours | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **94 dB** | Lawn mower | | | | | | | | | 1 hour | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **97 dB** | Nightclub | | | | | 30 mins | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **100 dB** | Ambulance siren | | | 15 mins | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **103 dB** | Rock concert | | 7.5 mins | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No one wants to enjoy their favourite music festival for just **7.5 minutes**! Make sure you are safe to enjoy the whole event by wearing correctly fitted earplugs from uvex. ### Signs noise levels are too high If you’re unsure whether a sound is dangerous, look for these signs: - You have to **raise your voice** to speak to someone nearby - Your ears feel **uncomfortable or painful** - You experience **ringing (tinnitus)** after exposure - Sounds seem **muffled** afterwards These are early warning signs that noise levels may be too high. ### Why noise matters in the workplace Excessive noise doesn’t just affect hearing - it can also impact: - Communication and situational awareness - Concentration and productivity - Stress and fatigue levels Over time, repeated exposure to high noise levels can lead to **permanent hearing damage** or [**tinnitus**](https://www.uvex-safety.co.uk/en/knowledge-hub/what-is-it-like-living-with-tinnitus/), often without immediate warning signs. ![Workplace noise protection](https://d3rbxgeqn1ye9j.cloudfront.net/images/Xj817Av8Zzk2xDbTFASGXov9hU6ZtdADem_4E_0BT50/w:345/h:345/fn:Y3NtXzgwMC13b3JrcGxhY2UtaGVhcmluZy1wcm90ZWN0aW9uX2Q1MmU0MmIyNTc:t/cb:bdf3d740d1f1d62c82cd247154a67638498c0c66/el:1/fq:jpeg:85:avif:70:webp:80/aHR0cHM6Ly9kM3JieGdlcW4xeWU5ai5jbG91ZGZyb250Lm5ldC9maWxlYWRtaW4vd3d3LnV2ZXgtc2FmZXR5LmNvLnVrL01lZGlhL2Jsb2cvaGVhcmluZy84MDAtd29ya3BsYWNlLWhlYXJpbmctcHJvdGVjdGlvbi5qcGc_MTc3ODIzODQ4Nw "Workplace noise protection") ### How to protect your hearing Managing noise risk follows a simple hierarchy: 1. **Reduce noise at source** (quieter equipment, maintenance) 2. **Control exposure** (limit time in noisy areas) 3. **Use hearing protection** where required Correctly selected hearing protection is essential - it should reduce noise to a safe level [**without overprotection**](https://www.uvex-safety.co.uk/en/knowledge-hub/are-you-overprotecting-your-workforce/), allowing users to remain aware of their surroundings. ### So, how much noise is too much? **As a general guide, anything above 85 dB over time poses a risk to hearing.** The key is understanding both volume and exposure duration, and taking proactive steps to control noise before damage occurs. With the right knowledge and protection, noise-induced hearing loss is entirely preventable. --- #### Got a question? We’re here to help ![Contact the uvex team](https://d3rbxgeqn1ye9j.cloudfront.net/images/DkOSMrF6qZqnUlpfDlrnfd3Vtmyq8yPpdMHVT5UzNo8/w:537/h:134/fn:Y3NtXzgwMC1jb250YWN0LWhlYXJpbmdfN2U2NmY3MzBlNQ:t/cb:a4c1f9be39d65c06194a166af7ca5503632ec39b/el:1/fq:jpeg:85:avif:70:webp:80/aHR0cHM6Ly9kM3JieGdlcW4xeWU5ai5jbG91ZGZyb250Lm5ldC9maWxlYWRtaW4vd3d3LnV2ZXgtc2FmZXR5LmNvLnVrL01lZGlhL2Jsb2cvaGVhcmluZy84MDAtY29udGFjdC1oZWFyaW5nLmpwZz8xNzc5MzU0NjYx "Contact the uvex team") Looking for further guidance? ------------------------------- Choosing the right PPE can make all the difference when it comes to safety, comfort, and compliance. If you’d like tailored advice or want to trial uvex products in your environment, get in touch via our quick contact form or email [marketing@uvex.co.uk](mailto:marketing@uvex.co.uk?subject=Understanding%20noise%20levels%20%7C%20Knowledge%20hub&body=I%20have%20a%20question%20about...). #### FAQ's What decibel level is considered dangerous? ------------------------------------------------ Noise above **85 dB** is considered potentially harmful with prolonged exposure. Higher levels become dangerous much more quickly. How loud is 85 dB in real life? ------------------------------------ Around **85 dB** is comparable to heavy traffic, a lawnmower, or busy industrial equipment. Is short-term loud noise harmful? -------------------------------------- Yes. Very loud sounds - especially above 100–120 dB - can cause damage even with short exposure. What are the legal noise limits at work in the UK? ------------------------------------------------------- - 80 dB: lower action level - 85 dB: upper action level - 87 dB: maximum exposure limit How can I tell if noise is too loud? ----------------------------------------- If you need to raise your voice to speak to someone nearby, the noise level is likely 85 dB or higher. Can hearing loss from noise be reversed? --------------------------------------------- No. **Noise-induced hearing loss is permanent**, but it is completely preventable with the right controls and protection. What type of hearing protection should I use? -------------------------------------------------- It depends on the environment. The goal is to reduce noise to a safe level without blocking essential sounds, ensuring both protection and awareness. --- [Back to Knowledge hub](https://www.uvex-safety.co.uk/en/knowledge-hub/)