What does 85 dB sound like?

June 2026

85 dB is the line. Below it, your hearing is safe indefinitely. At and above it, the clock starts ticking. It's the volume of heavy city traffic, a gas lawn mower, or earbuds turned to 70%. Loud enough that you raise your voice to be heard, but not loud enough to feel pain.

Why 85 dB matters

OSHA (Occupational Safety and Health Administration) sets 85 dB as the action level — the threshold where hearing protection becomes mandatory in workplaces. At this level, 8 hours of continuous exposure begins damaging the hair cells in your inner ear. The damage is cumulative and irreversible.

Common sounds around 85 dB

Heavy city traffic — standing on a busy road with trucks passing.
Gas lawn mower — at the operator's position, 85-92 dB.
Earbuds at 70% volume — most smartphones hit 85-90 dB here.
Food blender — crushing ice, about 85-90 dB from arm's length.
Busy restaurant at peak hours — when you have to lean in to talk.
Diesel truck passing at 10 meters — the rumble that makes you pause conversation.

85 dB compared with other levels

Level	Example	Safe duration
50 dB	Quiet office	Unlimited
65 dB	Conversation	Unlimited
85 dB	Heavy traffic, mower	8 hours
91 dB	Motorcycle	2 hours
100 dB	Nightclub	15 minutes
120 dB	Siren at 1m	Immediate risk

Full scale: decibel chart.

How long is 85 dB safe?

8 hours — one work shift. The rule: every 3 dB doubles the damage rate, halving safe time. So 88 dB = 4 hours, 91 dB = 2 hours, 94 dB = 1 hour. This is why a lawn mower (90 dB) for a full afternoon requires ear protection. More: safe noise levels.

Protecting your hearing at 85 dB

Foam earplugs: Reduce 20-30 dB. Cheap, effective, disposable.

Over-ear muffs: Reduce 25-35 dB. Better for extended wear.

Volume limiters: Most phones have a setting to cap output at 85 dB. Use it.

The arm's length rule: If someone at arm's length can't hear you at normal voice, you're above 85 dB.

Measure with an online sound meter

Open the sound meter and check your environment. If readings regularly exceed 80-85 dB, consider hearing protection for prolonged exposure.

Open sound meter

FAQ

Why is 85 dB the OSHA limit?

At 85 dB, hearing damage begins after 8 hours of continuous exposure. OSHA chose this as the action level — the point where employers must provide hearing protection and monitoring programs.

How long can you safely listen at 85 dB?

8 hours maximum. Every 3 dB increase halves the safe time: 88 dB = 4 hours, 91 dB = 2 hours, 94 dB = 1 hour.

Are earbuds at 70% volume 85 dB?

Often yes. Most smartphones deliver 85-90 dB at 70% volume with typical earbuds. In-ear models can be louder due to the sealed canal. Use your phone's built-in limiter.

Can 85 dB cause tinnitus?

Yes, with prolonged exposure. Tinnitus (ringing ears) is an early warning sign of noise-induced damage. If you notice ringing after exposure, reduce volume immediately.

Is a lawn mower really 85 dB?

A gas-powered lawn mower typically measures 85-92 dB at the operator's ear. Electric mowers are quieter at 70-75 dB. Ear protection is recommended for gas mowers.

85 dB is where awareness becomes essential. Your ears won't hurt, but damage accumulates silently. Know the level, respect the clock, protect what you can't repair.