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-> Info -> Noise Information

The chart below give a indication in the dB(A)
of different noise levels so you can
determine what generator would be suitable
for your application


Noise Level Information

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 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 a quiet Honda EU20i is rated at its lowest at 52 dBA @ 7 metres on the LWA scale this would equate to approx 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



Pneumatic drill


Noisy factory


Inside underground train


Inside bus


Average traffic on main road (at kerb)


Normal Conversation (at 1m)


Typical business office


Living room in suburban area




Bedroom at night


Insulated broadcasting studio


Threshold of hearing


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

Who makes Quiet Generators ?

What one person considers quiet another can deem noisy. If you are looking for a generator
for such activities as camping, caravanning or outsid events then the choice is limited.

Below are models suitable for caravanning etc that have the quietest noise ratings.

  Honda EU10i
1 kVa 52-58 dBA
  Yamaha EF1000is
1 kVA 47 -57 dBA
  Honda EU20i
2 kVa 52-58 dBA
  Yamaha EF2000is
2 kVA 51.5-58

  Yamaha EF2400is
2.4 kVA 54-59 dBA
YAmaha EF2400I
  Honda EU26i
2.6 kVa 49- 58 dBA
  Yamaha EF3000iSE
3 kva 51.57 dBA

  Honda Handy EU30
3 kVA 57-65 dBA
  Honda EU30is
3 kVa 49- 58 dBA



Just Generators, Britons Lane, Sheringham, Norfolk NR26 8TS

Tel: (01263) 820202 Fax: (01263) 826190
www.justgenerators.co.uk email us

Calgary Just Companies Ltd registered in England 4338715
Britons Lane Sheringham Norfolk, NR26 8TS|
Registered Address Highview, Top Common, East Runton,
Norfolk, NR27 9PR

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