Chromair Carbon Monoxide Colour Comparator

Monitor hazardous gases and chemicals by using the ChromAir badge alert system and maintain a safe work environment.

The colour scales on the colour comparators identically match the colours formed on the ChromAir badges.

The ChromAir chemical exposure monitoring badge offers six exposure levels, with most indicating from one-tenth to two times the Permissible Exposure Limit (PEL) Time Weighted Average (TWA) for an eight-hour work period.

To determine the average concentration, users can locate the highest cell with a colour change and divide the corresponding dose level (parts per million times hour) by the sampling time in hours.