2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
Purchasing personal protective equipment is an extremely important undertaking. The choice of a low-quality gas mask can lead to disastrous consequences for its owner. Therefore, this article contains all the most important information about the GP-21 gas mask. Familiarization with it is guaranteed to save you from making mistakes when choosing.
Device
The first thing you need to start getting acquainted with the GP-21 gas mask is its appearance. In general, the gas mask is a full-size face mask, attached to a person's head with six rubber straps. The total weight of the mask without filters is less than 800 grams. Its frontal part is conventionally divided into two.
At the top is a panoramic viewing window made of "flexible glass" - a polymer resistant to deformation and abrasion. After mechanical action, the glass independently takes its original shape without any damage. The glass is thermally embedded in the mask, which allows for maximum tightness, but thiseliminates the possibility of replacing damaged glass.
The lower part of the gas mask, like the entire contour of the mask, is made of fairly hard but elastic plastic, which allows you to protect it from breakage during use. Also, the lower part of the gas mask has a number of holes:
- Two symmetrically arranged threaded holes for installing filters. Since each of them is protected by a hermetic valve, the GP-21 gas mask can be used with both one and two filters at the same time.
- Hole intercom capsule type. The device allows a person wearing a gas mask to talk to others. At the same time, there is no threat of ingress of harmful substances during the operation of the device. The intercom, unlike glass, is not one piece with the mask, it can be easily dismantled by twisting.
- Slightly below the intercom is an exhalation valve that allows a person wearing a gas mask to freely exhale carbon dioxide into the environment.
In the inner part of the mask there is a rubber podmasochnik, providing a tight fit of the mask to the respiratory organs of the wearer. In addition, a rubber skirt is located along the contour of the entire mask, ensuring complete tightness of the mask.
Variations
Gas mask GP-21 is available in 4 versions:
- GP-21 - standard equipment.
- GP-21U - practically does not differ from its predecessor, except for the modified systemfilter attachments.
- GP-21V - standard equipment, supplemented with a drinking system. This model has an additional valve in the chin area, through which a tube is passed, through which liquid from the container of the drinking system can flow inside the gas mask.
- GP-21VU - variation of GP-21U with drinking system.
Package
The GP-21 filter gas mask reaches its user in the following configuration:
- Gas mask of the specified model.
- Filter.
- Filter cover.
- Shoulder bag for gas mask.
- Product data sheet.
- User manual.
Cons
Despite the prevalence, gas masks GP-21 have a number of disadvantages that significantly affect the sensations when wearing it:
- First, I would like to highlight that the gas mask has only two sizes of the face mask, and the rest of the adjustment is carried out only by tightening the fixing straps. This often leads to situations where tightness requires the straps on the head to be tightened quite tightly, which leads to increasing discomfort.
- The panoramic sight glass somewhat distorts the objects seen through it, which in an extreme situation can play a cruel joke.
- The mask inside the mask is attached extremely unreliably, which can lead to an early breakdown and, as a result, the removal of the gas mask.
Be careful when choosing your means of protection, because fromits quality may affect your life and he alth.
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