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Formaldehyde Filter Change Indicator Sticker – BTIS for ductless hood and fume extractor filters. Reliable and cost effective.

Formaldehyde Filter Breakthrough Indicator Sticker – BTIS

Formaldehyde Filter Change Indicator Sticker for ductless hoods filters

Item No. 140-0000

Product Features
Minimum detectable limit: 0.3ppm•hr
Color Change: Brown to blue
Dimensions: 2.8mm (0.11in), diameter: 31.8mm (1.25in)
Service life: 12 months

(Pack of 5)


Formaldehyde Filter Breakthrough-Indicator Sticker – BTIS. Filter change indicator for ductless hood and fume extractors filters. Unique design of the indicator prevents any color change due to exposure to contaminants in the surrounding environment and changes color only when filter is saturated. Protects from espouser to toxic chemical and allow you to get the most use of your filter.

How to use the BTIS? A. Remove adhesive protective liner from the bottom of sticker. B. Attach to center clean area of filter’s outlet with the reading area (glossy surface) of the sticker facing up.

PN 140-0000

Product Specifications

aWeight:0.4g (0.02oz)
bDimensions:2.8mm (0.11in), diameter: 31.8mm (1.25in)
cOperating temperature:-20oC to 55oC (-4oF to 131oF)
dOperating humidity:5% RH to 85%RH
eMinimum detectable limit:0.3ppm•hr at 30 cm/sec face velocity
fColor change:brown to dark blue
gStorage temperature:4oC to 25oC, (39oF to 77oF)
hShelf life:1 year at 4oC to 25oC, (39oF to 77oF)
iService life:1 year

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