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MP-5 Gas Mask

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MP-5 Gas Mask
MP-5
Typegas mask
Place of origin Poland
Service history
Used byChorągiew Wojska Polskiego Polish Armed Forces
Production history
Designermaskpol
Manufacturermaskpol

MP-5 Gas Mask – the standard gas mask of the Polish Armed Forces. This mask is designed to protect the user's respiratory tract from airborne toxic agents, radioactive dust and bacterial aerosols. For protection against toxic industrial agents such as ammonia or carbon monoxide, specific combined filters should be used additionally (connected in series with the basic FP-5 combined filter). The design also allows for the collection of fluids and conversation. The masks are currently manufactured by Maskpol.

Development

In the mid-1980s, the Department of Respiratory Protection of the Military Institute of Chemistry and Radiometry in Warsaw began work on a new gas mask. It was to replace the previously introduced MP-4 masks. This study had the working name MP-5.

The first WIChiR design had two screw-in absorbers (on the sides, which provided less inhalation resistance). It also had a headgear from the MP-4 mask and polycarbonate goggles. However, one absorber located centrally was ultimately used.

A soldier of the Military Police in an MP-5 mask
Polish soldier in MP-5 masks and OP-1 protective suit

Construction of the mask

Facial part

The face part of the mask is made of plastic. It has one large polyurethane visor. The canister mounting socket is located in the lower part of the mask. On the right side of the mask is the service valve (for fluid administration and mask tightness testing in an uncontaminated atmosphere), and on the left is the exhalation valve.

Absorber

The mask is designed with an FP-5 filter (NATO standard thread). Other filters with NATO standard thread can also be used.The composition of the setThe MP-5 gas mask is stored in the bag as follows:

  • face part – main pocket
  • filter absorber – main pocket
  • filter absorber – main pocket
  • bag straps – small side pocket
  • lower side pocket is a place for the anti-chemical package

Sizes

The mask comes in 4 sizes:

  • Size 1 – face height (Distance in a straight line from chin to nasal-temporal depression): over 127 mm
  • Size 2 – face height: from 116 to 127 mm, face circumference (along the oval line, through the ears, chin and above the eyebrows) over 605 mm
  • Size 3 – face height: from 116 to 127 mm, face circumference below 605 mm
  • Size 4 – face height: below 116 mm

Technical parameters

Inspiratory resistance with continuous air flow at a rate of:

  • 30 dm³/min – 175 Pa
  • 160 dm³/min – 1500 Pa

Exhalation resistance with continuous air flow rate:

  • 30 dm³/min – 80 Pa
  • 160 dm³/min – 300 Pa

Mask weight (face part with filter):

  • 800g

Patency of drinking device:

  • 200 cm³/min

References

  1. Maska przeciwgazowa filtracyjna MP-5 (instrukcja tymczasowa) (in Polish), Dowództwo Wojsk Lądowych, Szefostwo Wojsk Chemicznych, 2004
  2. Dane pochodzą z ulotki producenta.
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