Indoor Air Quality Testing in Tysons, Virginia

We coordinate with property management, tenant representatives, and building engineers to document complaints, review HVAC maintenance records, and identify recent events—renovations, water damage, chemical spills—that may have initiated air quality problems. This coordination minimizes duplicate effort and focuses testing.

Spore trap cassettes and VOC sampling devices are deployed across affected floors, mechanical rooms, outdoor air intakes, and control locations. For Tysons commercial buildings, sampling follows AIHA investigation guidelines with sufficient locations to characterize air quality across the affected building section.

We inspect air handling units, cooling coils, drain pans, mixing boxes, and accessible ductwork. Outdoor air intake locations are assessed for proximity to cooling towers, exhaust outlets, and construction activity. Surface sampling identifies biological contamination within the air distribution system.

CO2 concentration monitoring evaluates whether outdoor air ventilation meets ASHRAE 62.1 requirements for the space occupancy type. Inadequate ventilation is the most common cause of sick building syndrome—and the most straightforward to correct once identified through quantitative measurement.

Continuous particulate counters and gas monitors measure PM2.5, PM10, CO, and CO2 levels throughout the assessment period. These real-time instruments identify contamination episodes related to HVAC cycling, occupancy patterns, or external sources like construction activity.

Laboratory results are compiled into reports formatted for each stakeholder—property management summary, tenant employer documentation meeting OSHA record-keeping requirements, and building owner recommendation memo. Results are compared against OSHA PELs, EPA guidelines, and ASHRAE standards as appropriate.