Rugged, portable and accurate FTIR Multigas analyzer kit for providing a cost-effective solution to health and safety air quality monitoring issues through its dual functionality: Quantification of 50 gases simultaneously and identification of unknown gases directly in the field. Its Advance Library Search feature uses the NIST/EPA reference library of over 5,000 gases to identify gases (organic or inorganic) at sub-ppm levels, all in one easy-to-use package. Health and safety applications include, for example, industrial hygiene, hazmat, first responders, container fumigation.