Decibel

Decibel (dB) is a logarithmic unit used to express the sound (noise) level. It does not describe an “absolute loudness,” but rather a ratio between two values – which is why even a small increase in dB means a significantly higher noise level. A decibel is therefore a logarithmic unit expressing sound intensity. Every increase by a few dB represents a substantial rise in noise. Real firearms reach values that cause immediate hearing damage without protection, while airsoft operates at lower but still clearly audible levels. Understanding decibels is essential for safety, comfort, and choosing proper hearing protection. An excellent choice for hearing protection at the shooting range and in airsoft are tactical headsets from EARMOR, which you can also purchase in our e-shop.

Scale of different noise sources and their decibel values

How do decibels work?

The decibel scale is logarithmic:

+3 dB ≈ double the acoustic energy,
+10 dB ≈ perceived as “twice as loud.”

This means that the difference between 90 dB and 120 dB is not “a little,” but a many-times greater load on hearing.

Safe and dangerous noise levels

0 dB – threshold of human hearing.
30 dB – quiet room, whisper.
60 dB – normal conversation.
85 dB – long-term safety limit (without protection).
120 dB – threshold of pain.
140+ dB – immediate risk of hearing damage.

Firearm noise (real firearms)

9×19 mm pistol: approx. 155–160 dB
5.56×45 assault rifle: approx. 165–170 dB
Sniper rifle (.308 Win, .338 LM): 165–175 dB
LMG / machine gun: 170+ dB

Without hearing protection, even a single shot can cause permanent hearing damage.

Noise of airsoft guns

Airsoft guns are significantly quieter, but noise is still present:

Un-suppressed AEG (electric gun): approx. 70–85 dB
Un-suppressed GBB pistol / rifle: approx. 85–100 dB (slide + gas)
HPA systems: approx. 75–90 dB (depending on power; with suppression, very low noise can be achieved)
Maximally suppressed GNB pistol TM SOCOM MK23 with a long filled suppressor: approx. 20–30 dB

In enclosed CQB environments, noise can be uncomfortable and fatiguing, especially during longer games.

Noise of transport vehicles

Passenger car (city): 60–75 dB
Motorcycle: 90–105 dB
Truck: 85–95 dB
Train: 90–100 dB
Aircraft during takeoff: 130–140 dB

Why are decibels important in shooting and airsoft?

hearing protection (NRR headsets),
prevention of permanent hearing damage,
comfort during long-term exposure (CQB, MilSim).

Even though airsoft does not reach extreme values, long-term noise in indoor arenas or during the use of pyrotechnics has a cumulative effect.