Antidust half-mask SK-302 (FFP3)
Filtering half mask SK-302 designed for individual protection of respiratory organs against radioactive, toxic, bacterial, and other dangerous aerosols indoors, outdoors, and at underground mines. SK-302 are also meant for protection of respiratory organs against silica, metallurgical, ore mine, cement, coal, textile, tobacco, tea, and other kinds of dust.
SK-302 protects against High- and middle-dispersed aerosols of particularly dangerous and highly dangerous harmful substances with the concentration of up to 50 MPC.
The fundamental difference of SK-302 respirator from other respirators is the combination of excellent protective properties with their minimum impact on the functional systems of the human organism as well as a good fit over a wide range of face sizes. The latter has been achieved through the first-time ever application of the obturation principle in respirator design, based on electrostatic attraction of the fibres of the material to human skin. The application of this principle has ensured higher hygienic properties of respirators (improved air and moisture exchange of the skin of one's face) and considerably lower coefficient of unfiltered air inflow than in cases when we use respirators of different design.
SK-302 respirators have insignificant respiratory resistance and low weight, and provide unrestricted field of view as well as comfort in performing different types of activities. Respirators don't press upon one's face or cause skin irritation even when wearing over an extensive period of time.
Filtering half masks of SK-302 meet the basic requirements of the European Community Directive 89/686/EEC Personal protective equipment and the European Standard EN 149:2001+A1:2009, and were awarded the certificates of conformity of the EU.
|Half-mask type||Coefficient of penetration, %||Inhalation resistance, Pa||Exhalation resistance, Pa|
|NaCI||Paraffin oil||speed 0.5 dm3/s||speed 1.6 dm3/s||speed 2.7 dm3/s|
|EN149:2001 standard rate||Actual||EN149:2001 standard rate||Actual||EN149:2001 standard rate||Actual||EN149:2001 standard rate||Actual||EN149:2001 standard rate||Actual|