TE-6001-2.5-I PM2.5 Size Selective Inlet for Hi-Vol Air Sampler SKU: TE-6001-2.5-I

The TE-6001-2.5-I PM2.5 size selective inlet is designed to retrofit existing PM10 high volume air samplers for PM2.5 ambient particulate monitoring. The inlet assembly replaces the existing PM10 fractionator and contains multiple impactors that collect particles larger than PM2.5 aerosol on an oil-wetted surface, while PM2.5 aerosol is transmitted through the impactor and collected on a hi-vol filter.

Technical Operation

The PM2.5 size selective inlet is made up of 40 stainless steel nozzles that allow only 2.5µm particulates to get deposited on the filter. The inlet operates at a standard flow rate of 40 CFM (1.13 m³/min) and provides size-selective separation of fine particulate matter with an aerodynamic diameter of 2.5 micrometers or less.

Key Specifications

• Flow rate: 40 CFM standard operation
• Particle size cutoff: 2.5 µm aerodynamic diameter
• Construction: Stainless steel nozzles with oil-wetted impactor surfaces
• Compatibility: Fits existing TE-6001 PM10 sampler housings

Compatibility

The TE-6001-2.5-I inlet is specifically designed for use with existing TE-6001 PM10 size selective inlets and TE-6070 series high volume air samplers. This retrofit approach allows monitoring organizations to convert existing PM10 sampling equipment to PM2.5 capability without requiring complete system replacement. The inlet integrates with standard 8" x 10" filter holders and existing blower motor assemblies.

Installation and Maintenance

Installation requires removal of the existing PM10 fractionator and placement of the PM2.5 adapter assembly. The oil-wetted impactor surfaces require periodic maintenance with appropriate impactor oil to maintain collection efficiency. Regular inspection of the 40 stainless steel nozzles ensures consistent flow distribution and particle separation performance.

Applications

This inlet enables compliance monitoring for 40 CFR Part 50, Appendix L PM2.5 reference method requirements. Its primary uses is for non regulatory sampling and institutional studies. Applications include ambient air quality monitoring, source assessment studies, and research applications requiring fine particulate matter characterization. The system provides the 24-hour sampling capability required for PM2.5 NAAQS compliance assessment.