Antidust and gas-proof half-mask Lepestok - G
Light anti-dust and gas-proof half-mask "Lepestok - G" is intended for individual protection of the respiratory organs from vapours of metallic mercury and simultaneously from harmful aerosols in installation, underground works and in the open air.
The applying of the half-mask "Lepestok - G" is enabled in the case of multiple excess allowable concentrations in the air, which does not exceed:
- On vapours of mercury - 40;
- On harmful aerosols (any disparity) - 100.
For specialists
Antidust and gas-proof half-mask Lepestok - G
CHARACTERISTICS
1. Mass of a half-mask unpacked - no more than 16 g.
2. Initial resistance of a half-mask to a constant airflow at the volumetric charge of 30 l/min - 55+15 Pа.
3. Period of effective protection from the vapours of mercury with the reselected initial concentration 0.001g/m3 at the volumetric charge of 30 l/mines and penetration coefficient of no more than 0.5 % - not less than 6 hours.
4. Coefficient of a penetration of tests - aerosols with an average diameter of particles 0.28-0.34 microns - no more than 2 %.
In the use of a half-mask it is necessary to be guided by the "Description and maintenance instruction ", appended to a half-mask.
The conformity of half-masks "Lepestok - G" to the technical requirements within a period of 6 months from time of fabrication is guaranteed in the case of the observance by the consumer of requirements for external environments, transportation and storage.