As part of your air quality assessment, ERCs are placed in multiple locations throughout your facility — at the outside air intakes, in archival storage rooms, in restoration laboratories, and other areas of concern. The ERCs are left in these areas for a brief period, during which time airborne pollutants form a corrosion film on the coupon’s copper, silver, and/or gold-plated sensors. Following assessment, Purafil’s laboratory provides a comprehensive report detailing each environment’s air quality severity level and air quality classification.

Purafil’s air quality assessment service offers the following benefits:

• Simple and Economical: Purafil’s air quality assessment service requires no disruptive or expensive on-site monitoring with instrumentation.

• Practical and Effective: Assessment results correlate directly with industry-accepted air quality classifications.

• Reliable: The amount of corrosion forming on the ERCs over a given period is a primary indicator of how well controlled an environment may be.

• Comprehensive: Laboratory ERC analysis reveals information on general classes of gases present, estimated concentration levels, and humidity effects.