These Formaldehyde Monitors are available in the form of "Badges"  that are worn by the employee during a sampling period. There’s no liquid or metal mechanics involved in the badge sampling, so the process is not cumbersome at all.

This is how it works.  There is a microporous membrane that chemical vapors pass through. Under the membrane are special adsorbents that collect the vapors at a fixed rate. These badges meet and exceed OSHA requirements, and OSHA/NIOSH validated methods are used in AIHA-LAP, LLC-accredited laboratory.