37mm PM 2.5 Air Monitoring Filter

Used for PM 2.5 ambient air monitoring
• Conforms to EPA PM 2.5 reference method under the requirements of 40 CFR part 50 Appendix L
• Manufactured under clean room conditions
• Does not contain glues or adhesives
• Sequentially numbered for easy traceability of the filter
• Chemically resistant polypropylene support ring, which eliminates curling, and makes the filter robot-friendly
• Retains a minimum of 99.7% of 0.3 μm size particulates