Passive Badges

Passive Sampling Badges are a dual reading badge for Toluene Disocyanate (TDI) & Methyl Diphenyl Diisocyanate (MDI). This passive badge provides an immediate visual indication to warn the badge wearer of excessive aromatic isocyanate exposure.

Safeair Colorimetric Badges

The cost-effective detection of uncommon gases is not always possible. For measuring Ozone, Formaldehyde or Mercury, the SafeAir sampling badge makes this possible.

Low Cost

Each badge costs just £4.80.

Easy Calculation

Colour comparators are available for some badges making it easier to calculate exposure levels.

Save Money

Buy the Safeair System Starter Kit to make a cost saving on 10 dual isocyanate badges, a TDI colour comparison chart and 10 strap clips

ChromAir Passive Badge Samplers

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

Visual Indicator

Immediate, visual, on site results with no laboratory analysis required.

Colour Comparator

A colour comparator for higher resolution and accuracy.

No Pump Operation

The Chromair Colorimetric Badges from Morphix relies on the principle of diffusion, therefore it requires no pump to operate.

Passive Sampling Badges


Direct reading, sampling badges are generally worn directly on the worker’s clothing, close to the breathing area. Air samples are representative of the 8 hour TWA and 15 minute short term exposure of each employee. Diffusive “passive” personal monitors are making major contributions in the workplace in terms of gas detection strategies, better assessments and significant reduction in costs.


Benefits of Passive Sampling Badges


– Minimal training and expertise are required to perform air sampling with badges.

– Badges minimise interference with worker tasks, promoting worker efficiency. They are small, light, and have no tubes or motors.

– There are no pumps to purchase, calibrate, recharge or fail in the middle of sampling.

– Lower sampling rates prevent sample capacity excedance. Badges are tolerated for longer periods.


Where are colorimetric gas detectors used?

Colorimetric testing for isocyanates is carried out in laboratories and factories for the manufacturing of foams and elastomers, coatings, paints and footwear material.

Corrosive areas
Remote sampling areas
Gas storage areas
Perimeter/ fencelines