Electronic Vs. Non Electronic Ear Protection

Ear protection devices are used to protect the ears from damage caused by loud noise. Frequent exposure to high noise levels can reduce hearing ability, while wearing protective devices like headphones and ear plugs can reduce hearing loss. When choosing ear protection devices, buyers have the option of using electronic or non-electronic devices, each of which offers its own distinct benefits.

Function

• Traditional ear protection devices have relied on passive sound blocking and absorption methods to minimize noise exposure. Foam ear plugs inserted into the ear canal block sound waves from entering. Ear muffs with thick foam padding surround the ear so that sound waves are unable to reach the ear canal.

  Electronic ear protection relies on active sound blocking methods, rather than passive. These devices generate their own sound waves, known as "anti-noise." The anti-noise waves are nearly identical to regular sound waves, but have the opposite wavelength. When these two types of sound waves meet, they effectively cancel each other out.

Noise Reduction

• Both electronic and non-electronic ear protection devices are categorized by their noise reduction rating (NRR). NRR measures the difference in noise levels between those within a specific area versus the noise levels that actually reach the user. In most cases, electronic devices are capable of a higher NRR than non-electronic models. This makes electronic ear plugs or headphones the more effective option for those exposed to very high noise levels. Electronic units are also better able to protect the ear from low-frequency noises, which tend to penetrate passive devices more easily.

Other Factors

• Passive ear protection is typically the more cost-effective of the two types, especially when the cost of batteries is taken into account. They also tend to be more streamlined than the bulkier electronic devices. At the same time, electronic headphones offer several unique advantages. They can be equipped with radio or MP3 player connections, which may help workers feel less isolated as they work. They can also be connected to two-way radios, allowing safety warnings and other communication to take place without removing the protective device. Finally, electronic ear muffs and ear plugs can be used to amplify ambient noise and conversation while blocking louder and more damaging sounds.