The decibel which is normally abbreviated dBA is the unit used to measure the intensity of a sound. The human ear is incredibly sensitive, a person's ears can distinguish between wide ranging sounds such brushing their fingers on a notepad to the loudest explosion or Jet aircraft. To put these differences into perspective a jet aircraft is 1,000,000,000,000 times more louder than the quietest audible sound.

Looking on the decibel scale, the smallest audible sound which is near silence registers at 0 dB. An increase of 10 decibels equates to a 10 fold increase in noise to your ear.

Important Point!

Generators are measured and compared within the industry @ 7 metres.

To comply with EEC regulations all generators have to be marked in LWA this is a different measurement of sound which is taken from a different distance. For an example our quiet Champion 2000 Watt Inverter Generator (82001i-E) is rated at its lowest at 53 dBA @ 7 metres. On the LWA scale this would equate to approx 86-88 decibels. Please beware of this as all products have LWA marked on them, many do not have the industry rated @ 7 metres level.

Here are some common sounds and their decibel ratings:

Sound Levels Chart
120   Pneumatic drill
110   Noisy factory
100   Inside underground train
90   Inside bus
80   Average traffic on main road (at kerb)
70   Normal Conversation (at 1m)
60   Typical business office
50   Living room in suburban area
40   Library
30   Bedroom at night
20   Insulated broadcasting studio
10   Threshold of hearing
0 dB   Silence
Note: A 10 dB increase represents a doubling in loudness to the ear.

More Sound Info
190 dBA Heavy weapons, 10 m behind the weapon (maximum level)
180 dBA Toy pistol fired close to ear (maximum level)
170 dBA Slap on the ear, fire cracker explodes on shoulder, small arms at a distance of 50 cm (maximum level)
160 dBA Hammer stroke on brass tubing or steel plate at 1 m distance, airbag deployment very close at a distance of 30 cm (maximum level)
150 dBA Hammer stroke in a smithy at 5 m distance (maximum level)
130 dBA Loud hand clapping at 1 m distance (maximum level)
120 dBA Whistle at 1 m distance, test run of a jet at 15 m distance
Threshold of pain, above this fast-acting hearing damage in short action is possible.
115 dBA Take-off sound of planes at 10 m distance
110 dBA Siren at 10 m distance, frequent sound level in discotheques and close to loudspeakers at rock concerts, violin close to the ear of an orchestra musicians (maximum level)
105 dBA Chain saw at 1 m distance, banging car door at 1 m distance (maximum level), racing car at 40 m distance, possible level with music head phones
100 dBA Frequent level with music via head phones, jack hammer at 10 m distance
95 dBA Loud crying, hand circular saw at 1 m distance
90 dBA Petrol Lawnmower
85 dBA 2-stroke chain-saw at 10 m distance, loud WC flush at 1 m distance
80 dBA Very loud traffic noise of passing lorries at 7.5 m distance, high traffic on an expressway at 25 m distance
75 dBA Passing car at 7.5 m distance, un-silenced wood shredder at 10 m distance
70 dBA Level close to a main road by day, quiet hair dryer at 1 m distance to ear
65 dBA Normal Conversation
60 dBA
55 dBA Low volume of radio or TV at 1 m distance, noisy vacuum cleaner at 10 m distance
50 dBA Refrigerator at 1 m distance, bird twitter outside at 15 m distance
45 dBA Noise of normal living; talking, or radio in the background
35 dBA Very quiet room fan at low speed at 1 m distance
25 dBA Sound of breathing at 1 m distance
0 dBA Auditory threshold