GP-7 gas masks are the latest and proven models that reliably protect the user from the effects of various toxic substances. Using this equipment, you can protect the respiratory system, face, eyes from various substances - from poisonous to radioactive dust and biological aerosols.
A bit of history
The first gas mask GP-7 was developed in the 80s of the last century. Thanks to the improvements of the previous version of the GP-5 gas mask, the mask of the new model has become more reliable and safer, the ears do not close, because the belt fastening system has been finalized. With the help of filtering gas masks, protection against chemical warfare agents is provided. True, the characteristic of the gas mask GP-7 as a protector at a critical concentration of poisons indoors did not deserve good reviews. To date, gas masks of this brand are produced at three plants in Russia.
The appointment of civilian gas masks
The main purpose of these gas masks is to protect the population that lives in the center of air pollution with various harmful elements. Such equipment attracts attention with its ease of use, ease of dressing and low weight, the ability to breathe clean air without harmful impurities for several hours. The gas mask GP-7 is good in that it can be used simultaneously in combination with special means that protect the head. In addition, modifications to this gas mask have a special drinking device, so that you can stay in it for quite a long time. Convenient panoramic glass provides good visibility. Civil gas mask consists of several elements:
- filtering and absorbing boxes made of metal;
- front part of IHL;
- anti-fog film - one box;
- two insulation cuffs MNU-3;
- bags for gas mask;
- rubber pressure cord;
- instruction manuals and product form.
The gas mask can be supplemented with a DPG-3 cartridge, which complements civil and children's gas masks and thereby expands the scope of their application. The cartridge is able to protect the user from the effects of elements such as ammonia, chlorine, sulfur hydride , sulfur dioxide, hydrogen cyan, phosgene, amines.
Box Features
The main purpose of the filter-absorbing box is to clean the air that a person inhales. GP-7 gas masks are designed to protect the user from poisonous, radioactive and bacterial agents. To create the box, tin or aluminum alloys are used, which are given a cylindrical shape. To make the case durable, it creates ridges. Modern gas masks have plastic or metal boxes, each of which is good in its own way. The lightest gas masks are created on the basis of durable plastic - such devices are light in weight and very comfortable and comfortable to wear.
The top cover of the box has a threaded neck that connects it to the front. Sealing is provided with a metal cap and rubber gasket. In the bottom of the filter-absorbing box, a hole is thought out through which inhaled air enters. As an additional equipment, the box has an anti-aerosol filter and coal-catalyst (charge). The overall dimensions of the GP-7 gas mask when placed in a bag are 285x210x115 mm.
The anti-aerosol filter includes a plate in the form of a special filtering cardboard, which is folded to increase the filtering surface. The charge is located between two grids, and on top of one of them there is a tampon board - it holds coal dust.
FPK reliably protects the respiratory system and face from hydrocyanic acid, chlorocyanine, hydrogen sulfide, chlorine, hydrochloric acid, tetraethyl lead, ethyl mercaptan, nitrobenzene, phenol and furfural.
Front part
GP-7 gas masks have a front part in the form of a mask, which is supplemented by round glasses for the eyes. Survey glasses are made of high-quality material and covered with anti-fog films. If the gas mask is operated at low temperatures, it is supplemented by an insulating cuff, which helps to maintain the transparency of the glass during prolonged use.
The front part of the IHL is created for three growths. It includes several elements:
- A volumetric type mask that has an independent shutter is a strip of thin rubber that provides reliable sealing of the face of the mask on the head.
- Spectral knot.
- Intercom (membrane).
- Inspiratory and expiratory valve assemblies.
- Cowl.
- Headgear. It is needed to fix the front part, consists of an occipital plate and five straps - they are securely fixed when fitting the mask to the face.
- Clamping rings, which fix the film on the glass.
Main advantages
GP-7 gas masks are similar in design and function to previous models, but they also have a number of distinctive features:
- by reducing the resistance of the filter-absorbing box breathing is facilitated;
- the inhalation / exhalation valve system is made in the form of petals, so the valve box chambers are locked quickly and reliably;
- the presence of an independent shutter helps the user to be in a gas mask for a long time and not to experience unpleasant sensations (thanks to him there is less pressure on the face, a high degree of protection of the face is provided);
- civilian gas mask GP-7 is equipped with a modern intercom (membrane), due to which speech is clear.
Marking and packaging
Each gas mask is marked: it is applied with a special waterproof mastic to the filter-absorbing box. The data on the product reflects information about the batch number, series and number of FPK, the manufacturer, the date of manufacture. On the front part there is also a marking telling about the size, form number and manufacturer.
Storage of gas masks GP-7 is carried out in the factory packaging in a box, in each box - 20 sets of products. Their front parts are stacked in accordance with the size.
Modifications GP-7
One of the popular modifications of the civilian gas mask GP-7 is GP-7V. It has a front part MGP-V, which is additionally equipped with a device for receiving water from a conventional army flask. Such equipment allows you to drink water without removing the gas mask for this. The gas mask filtering GP-7 B is necessary as protection against toxic and chemically hazardous substances, radioactive dust, and bacterial agents. The composition of the gas mask is as follows: filter-absorbing box, front part, flask drinking tube, insulation cuffs, anti-fog film, bag and grille.
Another popular type of gas mask GP-7 is the gas mask GP-7VM. The peculiarity of this model is in the front form, equipped with trapezoidal viewing glasses, which improve visibility during operation. A special intercom and device for receiving water are the main differences of this variety.
Features of filtering gas masks
The gas mask device GP-7, which is a filter, is the following: a gas mask bag, a box with anti-fog films for glasses, a lid with a rubber seal that promotes the tightness of the front part, as well as a rubber stopper. GP-7 products are in great demand due to the more advanced design and shape of the helmet mask. They provide a safe intake of water, liquid drugs and other liquids in the area that has been infected. It is important that the FPK compounds can work in an extended period, and the size is thought out in three sizes.
Gas prices
The GP-7B (GP-7VMB) model is the cheapest GP-7 gas mask. The price of this variety is only 1962 rubles. Its distinguishing features are improved protective and ergonomic properties. In the process of developing this model, the latest technologies and original technical solutions were used. Using a gas mask, you can protect the respiratory system, eyes and skin of a person from the harmful effects of various factors. The advantage of this model is in the FPK plastic box, which is different:
- resistance to corrosion;
- low weight gas mask in general;
- reversible deformation of the material minimizes the possible conditions for the penetration of air along the walls of the housing;
- the box is filled with modern coal-catalyst, which improves the protective properties of the equipment and expands the boundaries of its application;
- a plastic box can be used in gas masks that are protected from organic and inorganic gases, vapors.
This gas mask is used to protect the population from the effects of vapors, gases, aerosols, and chemically hazardous substances.
The GP-7VMB model with a plastic box is another affordable GP-7 gas mask. The price for it starts from 2000 rubles. The advantage of this model is in the filter-absorbing box made of durable plastic.
Choose the right one
- First you need to pay attention to the correspondence of the front part (helmet-mask) and its serviceability. In order for the sizes to fit exactly, you need to use a measuring tape to draw along a closed line of the head through the crown, cheeks and chin.
- The results should be compared with the data given in the table to the helmet. Please note that the mask should not have cracks, punctures, glasses should be intact and clean.
- A gas mask must be worn and tested so that the mask fits your face as tightly and comfortably as possible.
conclusions
Gas filter civilian filtering GP-7 is equipment that allows you to protect the user in a timely manner from the effects of negative factors. Modern models of this brand are widely used in Russia to protect against vapors and gases contained in the air. Effective protection is provided against such harmful factors as:
- nerve paralytic effect;
- common toxic effect;
- radioactive exposure;
- blistering effect.
At the same time, a gas mask will not become a person’s protection in case of exposure to carbon monoxide and low boiling organic substances in the form of methane, ethane, butane, acetylene. Work in the mask is possible up to 12 hours, and all that is needed is the replacement of filter-absorbing boxes when they are worked out.