A spray booth for use within a building, the principal component of the spray booth being a metal housing that defines a partially enclosed work area for spraying operations and an air plenum communicating with the work area to receive airflows therefrom, the spray booth including filter mounting mechanisms for receiving replaceable air filters that remove particulates and volatiles from airflows, and an airflow producer for drawing airflows from the work area through the filters into the air...

Gas pipeline services, namely, commissioning of gas pipelines, maintenance of gas pipelines, temporary displacement of gas services, and gas pipeline evacuation services