What decibel level is considered safe for all-day listening?

NIOSH sets its recommended exposure limit at 85 dBA over an 8 hour day, and nothing on the chart above that level carries a full-day allowance. Normal conversation, at around 60 dBA, and most household sounds sit comfortably below that line. City traffic, at around 85 dBA, is the first everyday sound on the chart that reaches the reference level itself.

How much louder is a rock concert than a chainsaw?

A rock concert near the stage runs at around 110 dBA on the chart above, compared with around 105 dBA for a chainsaw. That 5 dB difference sounds small, but because the NIOSH exchange rate is 3 dB per halving, the permissible exposure time drops from about 4.7 minutes at 105 dBA to about 1.5 minutes at 110 dBA.

Why does adding just 3 decibels cut the safe exposure time in half?

The decibel scale is logarithmic, and NIOSH's recommended exchange rate reflects how sound energy actually accumulates: a 3 dB increase roughly doubles the sound energy reaching the ear, not the loudness a person notices. Halving the permitted time at each 3 dB step is how NIOSH keeps the total energy dose roughly constant across different level and duration combinations.

On the chart above, 85 dBA sits right at city traffic from the pavement, distinctly louder than a vacuum cleaner at 75 dBA but well below a lawnmower at 90 dBA. It is not painful and most people would not call it extreme, which is exactly why 85 dBA as the NIOSH 8 hour reference level surprises people: it is an ordinary, ambient sort of loud, not an obviously dangerous one.

What decibel level starts to cause physical pain?

The chart's painful zone starts at 120 dBA, covering an emergency siren at close range, a nearby thunderclap and a jackhammer at one metre. A jet engine at takeoff distance reaches 140 dBA and a firecracker around 150 dBA, both well past the level where duration stops being the relevant safety question at all.

Does this chart tell me the actual decibel level in my own home?

No. Every figure is a typical level for that source at a usual listening distance, and real readings shift with distance, room size, hard or soft surfaces and the specific piece of equipment. If an actual number for a specific room or job site matters, a handheld sound level meter, such as the one linked above, gives a real reading instead of a typical one.

How loud everyday sounds are, in decibels

Quick answer

Everyday sound levels run from about 10 dBA for normal breathing up to around 150 dBA for a firecracker at close range, and the line that matters for hearing conservation sits at 85 dBA. That is NIOSH's recommended exposure limit for an 8 hour day, and above it every added 3 dB cuts the permitted exposure time in half.

The decibel scale used for everyday sounds is A-weighted, written dBA, which shifts the raw sound pressure reading to match how the human ear perceives loudness at different pitches rather than a flat physical measurement. It is also logarithmic rather than linear: a 10 dB increase is roughly a doubling of perceived loudness, and a 3 dB increase is roughly a doubling of the actual sound energy. That second fact is the reason the exposure time column in the chart below falls so fast once the level passes 85 dBA.

Every figure below is a typical level for that source at a usual listening distance, not a measurement of any specific object. A vacuum cleaner three feet away and one across the room are not the same reading, and the same appliance varies by make and by how hard it is working. Use the chart to get a sense of scale, and use a meter, such as the one above, when the actual number in a specific room matters.

The full chart: everyday sounds from faintest to loudest

Published figure From a named standards body, regulator or professional classification. Reproduced here, not derived by us.

City traffic and a petrol lawnmower both sit right at or just above the 85 dBA NIOSH reference level, while a rock concert near the stage at around 110 dBA has a permissible exposure time of roughly a minute and a half.

Everyday sound levels in A-weighted decibels (dBA), with the NIOSH permissible exposure time for anything at or above 85 dBA
Sound	Typical level (dBA)	Zone	NIOSH permissible exposure (8 hr TWA, 3 dB exchange)
Normal breathing	10	Inaudible to faint	No 8 hour limit specified below 85 dBA
Rustling leaves	20	Faint	No 8 hour limit specified below 85 dBA
A whisper at one metre	30	Faint	No 8 hour limit specified below 85 dBA
A quiet library	40	Faint	No 8 hour limit specified below 85 dBA
A refrigerator humming	45	Moderate	No 8 hour limit specified below 85 dBA
A quiet office	50	Moderate	No 8 hour limit specified below 85 dBA
Moderate rainfall	55	Moderate	No 8 hour limit specified below 85 dBA
Normal conversation at one metre	60	Moderate	No 8 hour limit specified below 85 dBA
A dishwasher running	60	Moderate	No 8 hour limit specified below 85 dBA
An air conditioner at six metres	60	Moderate	No 8 hour limit specified below 85 dBA
A washing machine	70	Moderate	No 8 hour limit specified below 85 dBA
Highway traffic from inside a car	70	Moderate	No 8 hour limit specified below 85 dBA
A vacuum cleaner	75	Moderate	No 8 hour limit specified below 85 dBA
An alarm clock at half a metre	80	Loud	No 8 hour limit specified below 85 dBA
A garbage disposal	80	Loud	No 8 hour limit specified below 85 dBA
City traffic from the pavement	85	Loud	8 hours
A petrol lawnmower	90	Loud	2.5 hours
A hair dryer	90	Loud	2.5 hours
A subway train passing on the platform	95	Loud	47.6 minutes
A motorcycle at close range	95	Loud	47.6 minutes
A hand drill	98	Loud	23.8 minutes
A farm tractor	100	Very loud	15 minutes
A nightclub dance floor	100	Very loud	15 minutes
A chainsaw	105	Very loud	4.7 minutes
A petrol leaf blower	105	Very loud	4.7 minutes
A loud sporting event crowd	105	Very loud	4.7 minutes
A rock concert near the stage	110	Very loud	1.5 minutes
An emergency vehicle siren at close range	120	Painful	9 seconds
A nearby thunderclap	120	Painful	9 seconds
A jackhammer at one metre	120	Painful	9 seconds
A jet engine at takeoff, twenty-five metres	140	Painful	Under 1 second, effectively instantaneous
A firecracker	150	Painful	Beyond the exchange-rate formula's range; impulse noise guidance applies, not a time-weighted limit

Typical A-weighted levels at a usual listening distance. Real levels vary with distance, enclosure and the specific equipment. Exposure times are calculated from NIOSH's own formula (time = 480 minutes divided by 2 to the power of the level in dBA minus 85, all divided by 3), the same 3 dB exchange rate used on the NIOSH ladder further down this site.

Loud sound zones: what runs all day and what does not

Trade convention Taught everywhere in the clinic and the trade, and published as a standard by nobody. Useful, and not a standard.

Everything from an alarm clock to a hand drill sits in the 80 to 98 dBA loud zone, which is exactly where the NIOSH 85 dBA reference line falls.

Sound zones from faint to painful, with the range of levels each spans and what it means for exposure
Zone	Approx range (dBA)	Examples from the chart above	What it means for exposure
Inaudible to faint	~10 dBA	Normal breathing	No exposure concern at this level
Faint	20 to 40 dBA	Rustling leaves, a whisper, a quiet library	No 8 hour limit specified at these levels
Moderate	45 to 75 dBA	A refrigerator, a quiet office, rainfall, conversation, a dishwasher, an air conditioner, a washing machine, highway traffic in a car, a vacuum cleaner	Still below the 85 dBA NIOSH reference level
Loud	80 to 98 dBA	An alarm clock, a garbage disposal, city traffic, a lawnmower, a hair dryer, a subway train, a motorcycle, a hand drill	Crosses the 85 dBA NIOSH reference level; permissible time is measured in hours, not the whole day
Very loud	100 to 110 dBA	A tractor, a nightclub floor, a chainsaw, a leaf blower, a loud sporting crowd, a rock concert	Permissible time is measured in minutes
Painful	120 to 150 dBA	A siren, thunder, a jackhammer, a jet at takeoff, a firecracker	Permissible time is measured in seconds or is not defined at all; hearing protection and distance matter more than duration

Zone boundaries here are an editorial grouping of the published levels above, not a separate standard.

Common questions

What decibel level is considered safe for all-day listening?: NIOSH sets its recommended exposure limit at 85 dBA over an 8 hour day, and nothing on the chart above that level carries a full-day allowance. Normal conversation, at around 60 dBA, and most household sounds sit comfortably below that line. City traffic, at around 85 dBA, is the first everyday sound on the chart that reaches the reference level itself.
How much louder is a rock concert than a chainsaw?: A rock concert near the stage runs at around 110 dBA on the chart above, compared with around 105 dBA for a chainsaw. That 5 dB difference sounds small, but because the NIOSH exchange rate is 3 dB per halving, the permissible exposure time drops from about 4.7 minutes at 105 dBA to about 1.5 minutes at 110 dBA.
Why does adding just 3 decibels cut the safe exposure time in half?: The decibel scale is logarithmic, and NIOSH's recommended exchange rate reflects how sound energy actually accumulates: a 3 dB increase roughly doubles the sound energy reaching the ear, not the loudness a person notices. Halving the permitted time at each 3 dB step is how NIOSH keeps the total energy dose roughly constant across different level and duration combinations.
Is 85 decibels loud?: On the chart above, 85 dBA sits right at city traffic from the pavement, distinctly louder than a vacuum cleaner at 75 dBA but well below a lawnmower at 90 dBA. It is not painful and most people would not call it extreme, which is exactly why 85 dBA as the NIOSH 8 hour reference level surprises people: it is an ordinary, ambient sort of loud, not an obviously dangerous one.
What decibel level starts to cause physical pain?: The chart's painful zone starts at 120 dBA, covering an emergency siren at close range, a nearby thunderclap and a jackhammer at one metre. A jet engine at takeoff distance reaches 140 dBA and a firecracker around 150 dBA, both well past the level where duration stops being the relevant safety question at all.
Does this chart tell me the actual decibel level in my own home?: No. Every figure is a typical level for that source at a usual listening distance, and real readings shift with distance, room size, hard or soft surfaces and the specific piece of equipment. If an actual number for a specific room or job site matters, a handheld sound level meter, such as the one linked above, gives a real reading instead of a typical one.

Get the complete hearing gear list

Every item in the starter, everyday and full setups, with running totals, in one printable list. It opens with a hearing evaluation, because that is genuinely the first step. No charge.

One list, no sequence of daily emails, and you can leave at any time.

Last updated 2026-09-17.