85 dB is loud, and it becomes dangerous with long exposure. Eighty-five decibels is heavy city traffic, a food blender, a busy restaurant kitchen or a hair dryer next to your head. Short periods are fine. The risk is time: NIOSH sets 85 dB(A) for 8 hours a day as the most a worker should receive, and the risk of permanent hearing loss rises with every extra hour and every 3 dB above it.
85 dB at a Glance
Risky with long exposure Yes. 85 dB is the level where 8 hours a day can damage hearing.
- Sounds like
- Heavy city traffic, a food blender
- Compared with conversation (60 dB)
- 5.7× as loud as conversation, with 316× the sound energy
- NIOSH safe time
- 8 h a day
- OSHA workplace limit
- No limit: below 90 dB(A)
Hear the 10 dB steps. Your speakers can't play a true 85 dB, but these three noise clips are exactly 10 dB apart, so you can hear how much louder each step is. Turn your volume down first.
How Loud Is 85 Decibels? Everyday Examples
| Sound | Typical level | Notes |
|---|---|---|
| Food blender at 1 m | 80–90 dB | Louder with ice |
| Heavy city traffic | 80–90 dB | From the pavement |
| Hair dryer next to the head | 80–90 dB | Daily use adds up |
| Restaurant kitchen during service | 80–90 dB | Extraction fans, pans, voices |
| Handheld power drill (operator) | 85–95 dB | Hammer mode is louder |
| Gym class with loud music | 80–95 dB | Instructors are exposed every class |
85 dB is also the level phones and headphones use as a default warning point. EU rules for personal music players (standard EN 50332) require devices to default to 85 dB(A), with a warning before the user can go higher, up to a maximum of 100 dB(A). The (A) means A-weighted, explained in dB vs dB(A).
What 85 dB Sounds Like Compared With Other Levels
85 dB is 25 dB above conversation: about 5.7 times as loud and over 300 times the sound energy, as the logarithmic decibel scale shows. You have to shout to be heard at 1 m. It is only 5 dB below 90 dB, a lawn mower, but those 5 dB triple the energy and cut the NIOSH safe time from 8 hours to about 2.5 hours.
| Compared with | How loud 85 dB sounds | Physically |
|---|---|---|
| 60 dB | 85 dB is 5.7× as loud (+25 dB) | 316× the sound energy |
| 75 dB | 85 dB is 2× as loud (+10 dB) | 10× the sound energy |
| 80 dB | 85 dB is 1.4× as loud (+5 dB) | 3.2× the sound energy |
| 90 dB | 85 dB is 71% as loud (−5 dB) | 1/3 the sound energy |
| 95 dB | 85 dB is 1/2 as loud (−10 dB) | 1/10 the sound energy |
Is 85 dB Safe?
At 85 dB(A), NIOSH recommends no more than 8 h of exposure a day (85 dB for 8 hours, halving every 3 dB). OSHA’s legal limit starts at 90 dB(A), but OSHA requires a hearing conservation programme from an 8-hour average of 85 dB(A). 85 dB is also OSHA’s action level: when a worker’s 8-hour average reaches 85 dB(A), US employers must run a hearing conservation programme with noise monitoring, yearly hearing tests, training and hearing protection. The EU’s upper exposure action value is also 85 dB(A), at which hearing protection must be worn. OSHA and NIOSH noise limits compares the rules, and the safe noise levels chart lists safe times for every level.
How Long Can You Listen to 85 dB?
| Rule | Safe time at 85 dB | How it works |
|---|---|---|
| NIOSH (recommended) | 8 hours a day | Time halves for every 3 dB above 85 dB |
| OSHA (US legal) | 16 hours a day (by formula) | 8 hours at 90 dB; time halves every 5 dB |
| WHO–ITU safe listening (adults) | About 12.5 hours a week | 80 dB for 40 hours a week; halves every 3 dB |
| WHO–ITU safe listening (children) | About 4 hours a week | 75 dB for 40 hours a week |
The weekly figure matters most for headphones: 85 dB for 2 hours every day is 14 hours a week, just over the adult allowance. Use the noise exposure calculator to add up different levels across your day.
Is 85 dB Safe for Headphones?
For short sessions, yes; for long daily listening, no. Many phones warn at 85 dB because it marks the start of risky listening, and some phones track headphone levels against the WHO weekly allowance and notify you when you pass it.
Practical tips: keep the volume where you can still hear someone speaking at arm’s length, use noise-cancelling headphones so you don’t turn music up to cover traffic, and take breaks. Check your hearing if music starts to sound muffled or you notice ringing after listening.
What 85 dB Hearing Damage Looks Like
Noise damages the tiny hair cells of the inner ear, which do not grow back. The first sign is usually a dip in hearing around 4 kHz, the “noise notch”, which makes speech in noisy places harder to follow while quiet speech still sounds normal. Temporary muffled hearing or ringing (tinnitus) after loud noise is a warning that the ear has been overloaded. NIOSH estimates an 8% excess risk of material hearing loss after a 40-year working life at 85 dB(A), and animal research suggests that nerve connections in the ear can be damaged even when a standard hearing test comes back normal.
Pitch matters too: the ear canal naturally boosts sound between about 2 and 4 kHz, which is why high-pitched machine noise is so harmful. The frequency analyzer shows where the energy of a noise sits.
How to Measure 85 dB Yourself
You can check whether a sound really reaches 85 dB in about a minute with a phone or laptop:
- Open the sound decibel meter with the button in the box above and allow microphone access.
- Hold the device where your ears are, at arm’s length, and keep your fingers away from the microphone.
- Watch the A-weighted reading for 30–60 seconds and note the average (Leq), not only the maximum.
- For better accuracy, calibrate your microphone once against a known reference level.
For a workplace, measure at the worker’s ear position through a full task, and use a certified meter for formal assessments (sound level meter vs decibel meter). For headphones, a phone meter gives only a rough estimate; online decibel meter accuracy explains why.
Frequently Asked Questions
Is 85 dB safe?
For up to 8 hours a day, yes, according to NIOSH. Beyond that, or regularly above 85 dB, the risk of permanent hearing loss rises.
Is 85 dB dangerous?
Not in short bursts. It becomes dangerous with long daily exposure: the NIOSH safe time is 4 hours at 88 dB, 2 hours at 91 dB and 1 hour at 94 dB.
Can 85 dB cause hearing damage?
Yes, given enough time. Years of 8-hour days at 85 dB(A) cause measurable hearing loss in a minority of workers, which is why it is the recommended limit and not a completely safe level.
How loud is 85 dB compared with 60 dB?
About 5.7 times as loud, with over 300 times the sound energy.
What does 85 dB sound like?
Like a blender at arm’s length or heavy traffic from the pavement: you need to shout to be heard. Play the 85 dB step in the widget to hear it next to 75 and 95 dB.