Nextteq’s VeriFit® Irritant Smoke Generator integrates all the necessary components of a traditional irritant smoke fit testing kit into one convenient device, and offers users cost and safety advantages compared to other qualitative fit test kits. To use a VeriFit Irritant Smoke Generator, simply bend the plastic tube to break the enclosed ampoule. Its plastic construction is a safer alternative than traditional irritant smoke test kits that use exposed glass tubes as there is no risk associated with broken glass.