Anti-noise headphones - a means of individual protection of the hearing organ. They are designed for use while working, sleeping, relaxing, listening to music. Their main application is the protection of hearing in production, accompanied by noise, the level of which poses a threat to human he alth. These devices are used first:
- at construction sites;
- in the mining industry;
- in repair shops;
- in the steel industry;
- in mechanical engineering;
- in any production where a person is forced to stay close to objects that create a high level of noise for a long time.
There are special types of safety helmets that are compatible with earmuffs.
GOST requirements for the design and materials of earmuffs
An obligatory part of the equipment of production workers with an increased level of danger to the human hearing organs are earmuffs. GOST R 12.4.210-99 contains general technical requirementsto this device, which must be observed by the system. Hearing protector material and design requirements:
- Headphones must be made of materials that exclude the possibility of allergic or other undesirable reactions, including mechanical damage to human skin.
- Details of the structure must be rounded, without sharp edges and must not have external damage.
- Changing shock absorbers or liners should not require special tools.
General requirements GOST
Anti-noise headphones, first of all, must comply with the parameters of a certain size - S, M, L. To control compliance with this condition, there are special models of a person's head of appropriate sizes. They check the adjustment range of the cup holders and the distance between the ear pads.
According to GOST:
- maximum allowable headband pressure force - 14 H;
- ear cushions of the headphones should fit snugly, without gaps, to the test layout;
- maximum allowable shock absorber pressure - 4500 Pa;
- when dropped, the headphone parts should not fall off or crack;
- if the shock absorbers are filled with liquid, there should be no leakage;
- headphones should not be easily flammable;
- The device must provide a minimum level of noise absorption.
Design of earmuffs
Anti-noise headphones, like regular ones, consist of a headband and ear pads. Hearing protectors may have a headband:
- standard:
- with helmet attachment;
- cervical (occipital);
- foldable.
The standard headband has the usual arc shape for any headphones and is worn over the head or helmet. The occipital or cervical headband covers the back of the head. The helmet-mounted headband consists of two half-arches and is attached not on top of the helmet, but on both sides, above the auricles. The foldable headband makes the headphones compact when folded for easy storage.
Noise-absorbing properties of hearing protectors are ensured by the properties of the materials of the ear pads and the design of the headphones, which creates the closest fit to the ears.
Headphones for work at SOMZ production
Suksun Optical and Mechanical Plant (ROSOMZ) specializes in the production of personal protective equipment for the head, eyes, face, hearing and respiratory organs. In the assortment of its products is a whole line of devices for hearing protection. As one example, earmuffs SOMZ 1 can be cited. They are designed to protect against medium-level noise for all industries, including metallurgical and machine-building. High-quality cup material and sound-absorbing liners provide a noise reduction level of 27 dB. This level can effectively suppress the sounds of operating equipment and other noiseswhich pose a risk to human he alth, but do not silence speech and danger signals.
All SOMZ anti-noise headphones have a well-thought-out design, adjustable headband height, providing a snug fit to the head. The material from which the shock absorbers are made retains its shape throughout its entire service life. Light weight and comfortable headband contribute to the comfortable wearing of the product for the entire work shift. The SOMZ line of anti-noise headphones includes models with a microphone, radio, and an increased level of noise absorption (they cope with noise up to 115 dB).
3M Hearing Protective Equipment
The 3M manufacturing company manufactures electrical products for a wide variety of human activities. The product range of this company includes products for personal hearing protection in the workplace. Among the products in this area are anti-noise headphones 3M. Almost all headphone models of this brand are presented with several headband design options. With a wide range of 3M hearing protection options, you can find the right fit for any job. Including many models of 3M headphones have options for use in places where, in addition to noise absorption, increased visibility is required (airports, road construction, etc.).
SACLA EARLINE - hearing protection
SACLA is a famous French manufacturer of personal protective equipment,producing under the EARLINE brand various types of products for the head, face and hearing organs. These include the MAX 400 earmuffs. These include compact models with a foldable headband and modifications that are compatible with a face shield holder and helmet. The level of noise absorption allows the use of headphones of this brand in production with a low noise level. The headband is made of ABS plastic and the ear cups are made of polyurethane foam (a substitute for rubber and rubber).
On the protection of sleep
Anti-noise headphones for sleep - a good alternative where earplugs are usually used. You don't always want to just disconnect from your surroundings. Many people like to listen to calm music or recordings of nature sounds before going to bed. In this case, special soft headphones designed for sleep, or slipphones, are suitable. They provide a high level of noise isolation, like earplugs, but at the same time they are not inserted into the auricles, but fit snugly against them. Noise-reducing headphones for sleep have a flat shape and are made of elastic materials, and therefore do not interfere with a comfortable rest. Most often, in shape, they resemble a regular headband. The usual ear pads for such devices are hidden in a "case" made of fabric. Sleep headphones can be wired or wireless. The latter work with Bluetooth devices.
