Personal Modular Impactor (PMI), PM Coarse, 3 L/min
The SKC Personal Modular Impactor (PMI), single-stage impactor designed for highly efficient collection of PM Coarse (PM10-2.5) at 3 L/min, includes impactor and two filter cassettes with support screen.

The patented (U.S. Patent No. 7,334,453) SKC Single-stage Personal Modular Impactors (PMIs) are designed for the highly efficient collection of PM10, PM2.5, or PM Coarse (10-2.5). The samplers are easy to use with a removable filter cassette and pre-oiled impaction disc. PMI media changes are as easy as removing the filter cassette and replacing it with one already loaded with a 37-mm final filter. The 25-mm pre-oiled impaction disc mounts directly on top of the filter cassette and reduces particle bounce for high collection efficiency.
A 25-mm filter may be used as an alternative impaction substrate for gravimetric or chemical analysis of particles. The PMI Coarse model and the Coarse Ring accessory include a second filter cassette to allow collection of particles sized between 2.5 and 10 µm.
For more information on the Personal Modular Impact, contact your local Air-Met office.
- Models available for PM10, PM2.5, or PM Coarse (10-2.5) sampling
- Use with any constant flow pump at 3 L/min
- Closely follows PM2.5 or PM10 as defined by EPA
- Compact and lightweight — only 2.5 ounces (71 grams)
- Ideal for personal or micro-environmental sampling
- Convenient modular design for easy operation
- Removable filter cassette for easy media changes
- Disposable ready-to-use pre-oiled impaction discs reduce particle bounce for high collection efficiency — no cleaning or greasing
- Convenient clip for mounting sampler in the breathing zone
- PMI PM10 model is easily converted with accessory ring to measure PM Coarse
Flow Rate | 3 L/min for all models |
50% Cut-point | 10 µm or 2.5 µm (model dependant) |
Material | Inlet: Precision-tooled aluminum |
Exhaust: PVC | |
Filter Cassette: Delrin® with stainless steel support screen | |
O-ring: Inlet — PTFE | |
O-ring: Exhaust — BUNA-N | |
Final Collection Filter | 37-mm filter, select filter material based on application |
Impaction Substrate | 25-mm pre-oiled, disposable porous plastic disc to reduce particle bounce or 25-mm filter for optional chemical analysis |
Analyses | Gravimetric and chemical |
Dimensions (without clip) | Diameter: 2 in (5.1 cm) |
Height: 1 in (2.6 cm) | |
Weight: 2.5 oz (70.9 gm) | |
Tubing | 1/4-inch ID |
- Personal or micro-environmental sampling