What should technicians do first if they encounter a strong, persistent odor?

Identifying and eliminating the source of the odor is paramount because it addresses the root cause of the problem rather than just treating the symptoms. Strong, persistent odors typically result from contaminants such as mold, decay, or chemical spills. Removing the source ensures that the foul smell does not return, making it a more effective and lasting solution. Once the source is eliminated, subsequent steps like sealing the area or potentially masking the odor can be more effectively implemented. Failing to address the source can lead to ongoing issues, and the odor may continue to permeate even if other actions are taken. This approach aligns with best practices in odor control, emphasizing thorough investigation and remediation over temporary solutions.