A thermal oxidizer in the U.S. should be inspected regularly to ensure compliance with environmental and safety regulations, with most facilities following a combination of daily, monthly, and annual checks. Daily inspections typically involve verifying operating temperatures, airflow, burner performance, and pressure readings to ensure the unit is functioning within permitted limits. These routine checks help identify early signs of wear or malfunction before they affect emissions.

Monthly or quarterly inspections often focus on verifying sensor calibration, inspecting insulation, checking ductwork for leaks, and ensuring proper operation of safety interlocks. Facilities subject to EPA Title V permits or specific state air-quality rules may also be required to document these inspections as part of their compliance reporting.

A comprehensive compliance inspection—often conducted annually—includes performance testing, emissions monitoring, and verification that destruction efficiency meets regulatory standards. This may involve third-party auditors or certified environmental professionals.

Overall, a thermal oxidizer should be inspected frequently enough to maintain safe operation and meet all federal, state, and local requirements, with annual documented evaluations serving as the primary benchmark for regulatory compliance.