VTX was retained by the Client to perform a limited IAQ survey within a Call Centre tenant space (Site). The purpose of the limited IAQ survey was to establish a baseline IAQ index and to identify any potential sources of the IAQ issues. VTX visually inspected the site for evidence of elevated moisture levels within the building materials and for evidence of water damage and visible mould growth. There are currently no federal or provincial regulations associated with indoor mould concentrations, typical industry standard practice is to compare interior air sample results with the outdoors (ambient) air sample results. VTX collected two (2) exterior ambient air samples at the site building for comparison with the air samples collected within the interior of the tenant space. The primary purpose of collecting samples was to assess for the presence or absence of elevated airborne mould spores within the Site building.