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Halogens Filter Breakthrough indicator. It indicates the saturation of filters. It is reliable means for protection from exposure to halogens.

Halogens Filter Breakthrough Indicator

Halogen Gases and Vapors Filter Change Indicator. Chlorine Indicator • Bromine indicator • Iodine Indicator

Item No. 195

Product Features

Minimum detectable limit: 0.5ppm•hr

Color Change: Yellow or orange to red or dark blue

Inlet dimensions: ¾” Male NPT

Service life: 12 months


Halogens Filter Breakthrough indicator. Colorimetric indicator that indicates the saturation and exhaustion of filters. It is reliable and cost effect means for protection from exposure to halogens. The indicator changes color from Yellow to red or purple when filter is saturated with halogens.

Connect the indicator to the ¾ inch female NPT outlet of filter using the ¾ inch male NPT threading at the bottom of the indicator. Indicator is sensitive to halogens. Observe bright vibrant color change from all directions. The unique design of the indicator prevents any color change due to exposure to contaminants in the surrounding environment. It changes color only when filter is saturated.

PN 195
Product Specifications


Weight:28g (1.0oz)



89.9mm (3.5in), diameter 24.5mm (1.0in)


Inlet dimensions:¾” MNPT


Operating temperature:-20oC to 55oC (-4oF to 131oF)


Operating humidity:5% RH to 95%RH


Minimum detectable limit:0.5ppm•hr at 30 cm/sec face velocity


Color change:Yellow or orange to red or dark blue


Storage temperature:4oC to 25oC, (39oF to 77oF)


Shelf life:1 year at 4oC to 25oC, (39oF to 77oF)


Service life:1 year

Useful Links
Chlorine Permissible Exposure Limit (PEL)
Bromine Permissible Exposure Limit (PEL)
Iodine Permissible Exposure Limit (PEL)

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