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How loud is a hair dryer?

A hair dryer is typically around 85 dB — comparable to heavy city traffic. That falls in the “very loud” band, with a safe unprotected limit of about 8 hours.
0 dB3570105140 dB
Typical level
85 dB
Category
Very loud
Vs conversation
5.7× louder
Safe limit
8 hours

People search “how loud is a hair dryer?” for two reasons: curiosity about the number, and a practical worry about whether it is doing damage. Here is both — the typical level, what it feels like next to sounds you know, and what to do about it.

What 85 dB actually feels like

85 dB is in the risk zone. It is at or above the 85 dBA action level used by NIOSH and OSHA, which means exposure time now matters: the louder it gets, the shorter the safe dose. Hearing protection is recommended for sustained exposure, and the damage — when it happens — is painless and permanent. In the specific case of a hair dryer, the figure depends a lot on distance and the exact source: measured close up it can be several decibels higher, and across a room several decibels lower. Treat 85 dB as a representative, real-world value rather than a fixed constant.

Hearing protection

For anything above 85 dB, rated protection matters. Look at the NRR (US) or SNR (EU) figure — real-world reduction is roughly (NRR − 7) ÷ 2.

Electronic ear muffs (NRR 22–25)Shooting, mowing — amplify speech, block bangsLink coming soon
Reusable filtered earplugs (NRR 20)Concerts & musicians — flat attenuationLink coming soon
Foam earplugs (NRR 32)Sleep, travel, DIY — highest raw NRRLink coming soon

As an affiliate we may earn from qualifying purchases. This never changes our data or recommendations.

Is a hair dryer dangerous?

At 85 dB, a hair dryer can damage hearing with prolonged exposure. Limit unprotected exposure to about 8 hours, and use rated protection for anything longer. Damage at this level is painless and permanent.

Hearing protection

For anything above 85 dB, rated protection matters. Look at the NRR (US) or SNR (EU) figure — real-world reduction is roughly (NRR − 7) ÷ 2.

Electronic ear muffs (NRR 22–25)Shooting, mowing — amplify speech, block bangsLink coming soon
Reusable filtered earplugs (NRR 20)Concerts & musicians — flat attenuationLink coming soon
Foam earplugs (NRR 32)Sleep, travel, DIY — highest raw NRRLink coming soon

As an affiliate we may earn from qualifying purchases. This never changes our data or recommendations.

A hair dryer vs other everyday sounds

SoundLevelCompared to a hair dryer
A blender85 dBabout the same
A diesel truck85 dBabout the same
An airplane cabin85 dBabout the same
City traffic85 dBabout the same
A coffee grinder80 dB5 dB quieter
A garbage disposal80 dB5 dB quieter

How to reduce it

Distance is your first tool — every doubling of distance outdoors removes about 6 dB. Where you cannot move away, rated hearing protection is the answer: look for a high NRR (US) or SNR (EU) figure, remembering that real-world reduction is roughly (NRR − 7) ÷ 2. Our hearing-protection guide explains how to choose.

Frequently asked questions

How many decibels is a hair dryer?
A hair dryer is typically about 85 dB, though the exact figure varies with distance, model and conditions. That places it in the “very loud” band of the decibel scale.
Is a hair dryer bad for your hearing?
At about 85 dB, a hair dryer exceeds the 85 dBA action level. Safe exposure is roughly 8 hours without protection, after which hearing damage can accumulate.
How does a hair dryer compare to normal conversation?
Normal conversation is about 60 dB. At 85 dB, a hair dryer is perceived as roughly 5.66× as loud and carries about 316× the sound energy.
How can I make a hair dryer quieter?
Wear rated hearing protection when close to it, increase your distance (every doubling drops about 6 dB outdoors), and add absorbing or blocking material where possible.

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Sources & accuracy. Reference levels are drawn from published data by NIOSH, OSHA, the CDC, the WHO Environmental Noise Guidelines and the American Speech-Language-Hearing Association (ASHA). Real-world readings vary with distance, room acoustics and the specific source, so treat every figure as a typical value rather than an exact constant. Last reviewed 2026-08-11.