Autonomous heat source AIST 7 hours is designed for use as a heating element - insert in gloves, inner pockets of overalls in order to:
- local heating and prevention of hypothermia when working in the cold;
- increasing the time of staying in the cold;
- extending the temperature range of overalls.
The autonomous heat source is a thermochemical disposable heating element placed in an individual hermetic polymer package to prevent unauthorised activation during storage. The heating element is a shell made of soft gas-permeable cloth, inside of which a heat-producing mixture is placed.
Composition of the fuel mixture: iron powder, water, activated carbon, natural minerals. After removal of the heating element from the individual hermetically sealed package, air oxygen penetrates through the gas-permeable shell and gains access to the fuel mixture...
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