Product Code: SA850-10


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Single piece construction which provides protection against particulates and specific gases/vapours. With twin inhalation valves, a parabolic exhalation valve which reduces breathing resistance, four point strap adjustment, adjustable head cradle and non-allergenic facepiece. Minimum 78% efficiency against particulates to 0.5 micron up to 4 x OEL* (4277 offers up to 20 x OEL*). Additional protection against gases/vapours as indicated up to 10 x OEL* or 1000 ppm, whichever is lower. The respirator should be discarded immediately the gas/vapour is detected by smell or taste. Supplied singly in a resealable foil bag.

To EN405:2002 (FFA1P2D) Approved Standard. Protects against organic vapours (boiling above +65°C) Colour code brown/white.

*OEL: Occupational Exposure Limit of contaminant as specified in relevant Guidance Notes from the Health and Safety Executive (HSE).

Warning on the use of Masks and Respirators

Masks and respirators should be used in well ventilated areas, minimum 19.5% oxygen (manufacturer’s definition of minimum oxygen requirements). They should not be used for escape purposes and are not suitable for use by operatives with facial hair that restricts direct contact between the face and the mask/ respirator edge. The wearer should immediately leave the work area and remove the respirator if:

  • (a) difficulty with breathing occurs
  • (b) they become dizzy or distressed
  • (c) the respirator is damaged in any way

Safety note

These respirators should only be used where the gas/vapour has good warning properties i.e. strong smell or taste. They are not suitable for use in atmospheres immediately dangerous to health or life.