Z-A/B/E/K-P3-2 filter element

Comprehensive protective filter (Z-A/B/E/K-P3-2)

      The filter mainly consists of cylindrical aluminum shell, activated carbon catalyst impregnated with different metal oxides and smoke filter made of high-efficiency glass fiber filter paper, with a standard universal thread of M40*4 with interchangeability, and brown + gray + yellow + green + pink labels. It can provide defense against organic, inorganic, acidic and alkaline gas or vapor, such as benzene, aniline, nitrobenzene, sulfur dioxide, chlorine, cyanogen chloride, ammonia, toxic smoke, toxic smog.

Technical requirements:

Ventilation resistance: ≤ 140 (30 L/min) ≤ 610 (95 L/min)

Dust discharge capacity of filter: ≤ 0.24 mg

Sealing: no bubbles should escape within 1 min under the pressure of (15±2) KPa.

Protective time for benzene (C6H6): ≥ 70min (test gas concentration 9.7mg/L)

Protective time for cyanogen chloride (CNCl): ≥ 23min (test gas concentration 1.1mg/L)Protective time for sulfur dioxide (SO2): ≥ 23min (test gas concentration 8.0mg/L)

Protective time for ammonia (NH3): ≥ 25min (test gas concentration 2.1mg/L)

Smoke filtering performance ≥99.99%

      The protective time is inversely proportional to the concentration of toxic agent. The higher the concentration, the shorter the effective protective time.

      This type of filter can be used in direct conjunction with the full face mask.