Request for Laboratory Analysis of Unknown Airborne Substance Collected from Residential Vent

An individual is seeking a qualified third-party laboratory to analyze materials used to capture an unknown airborne substance originating from a residential ventilation system. The substance is not identified as natural gas or carbon monoxide based on prior testing but has been associated with adverse physical symptoms upon exposure.

The submitted materials include a damp cloth and plastic sheeting used as a temporary barrier over a vent opening and subsequently sealed and bagged using protective gloves. The objective of the testing is to identify or characterize potential chemical constituents present on the collected materials through appropriate analytical methods, under a formal laboratory testing arrangement.