The BGI PQ200 Sampler uses Mesa Labs pioneering technology to meet and exceed the requirements for ambient particulate sampling dictated by the U.S Environmental Protection Agency.

The BGI PQ100 Sampler is a portable, easy to operate, EPA Federal Reference Method sampler for PM10.

The US Environmental Protection Agency (EPA) encourages state and local air monitoring groups to conduct short-term multi-site pollutant monitoring studies using non-reference method, small portable samplers. The Omni FT can be used for air monitoring.

The BGI tetraCal® is a simple-to-use, NIST Traceable Standard for volumetric air flow, barometric pressure, and ambient temperature.

Designed to go anyplace, indoors or out. From the top a 15,000 ft mountain to a 55° C desert or a -30° C snow field, the NIST traceable deltaCal is pulsation free, accurate to less than 0.75% of the flow rate reading.

HiVol Calibrator
The BGI High-Volume Calibrator is a NIST traceable flow device to assist air sampling technicians with easy and quick field calibrations, with a minimum of effort and hardware.

The Challenger
Challenger is a NIST traceable handheld calibrator for verifying and calibrating industrial hygiene air sampling instruments.

Collison Nebulizer
The Collison Nebulizer has long been the recognized technique for the efficient aerosolization of various liquids.

PM2.5 Reference Method PTFE Filter
Mesa’s Teflon Polytetrafluoroethylene (PTFE) filters with Perfluoroalkoxy (PFA) support rings are engineered by metrologists to ensure the highest accuracy in your gravimetric analyses.

High-Purity Quartz (SiO2) Microfiber Filter
Mesa’s high-purity quartz filters abide by the EPA’s Compendium Method IO-2.1, Section 6.2. Quartz filters are ideal for withstanding high temperatures while maintaining a high collection efficiency.

H-PEM PM10, PM2.5, and PM4
The Harvard Personal Exposure Monitor (H-PEM) is a development of the Environmental Science and Engineering Group at the Harvard School of Public Health.

The BGI accessories range from the SSI2.5 standard EPA inlet, standard TSP inlet, miniPM inlet for PM10 and TSP, solar panels and much more.

Ambient Particulate Inlets
Ambient particulate inlets matrix showing all models.

BGI Sampler Comparison
BGI sampler comparison chat shows all applications.

Environmental Cyclones
BGI environmental cyclones matrix features particle size, flow rate, and applications.

Personal Sampling Cyclones
BGI Personal sampling cyclones matrix showing dimensions, weight, filter size, and more.

Cyclone Selector Chart
BGI cyclone selector chart compares cyclone model to particle size cut point.

Cyclone Calculator
List of Mesa standard commercial cyclones.

The New OSHA Respirable Crystalline Silica Rule
Information sheet detailing new OSHA rules.

MetOne SASS Sampler
The Met One SASS chemical speciation sampler was developed in order to collect samples for the chemical and gravimetric analysis of PM2.5 ambient air particulate matter.

Andersen Instruments RAAS Sampler
The Andersen RAAS (Reference Ambient Air Sampler) chemical speciation sampler was developed in order to collect samples for the chemical and gravimetric analysis of PM2.5 ambient air particulate matter.

URG MASS Sampler
The URG MASS 400 and 450 chemical speciation samplers were developed in order to collect samples for the chemical and gravimetric analysis of PM2.5 ambient air particulate matter.

The IMPROVE visibility program (Interagency Monitoring of Protected Visual Environments) is a cooperative measurement effort designed to establish current background aerosol concentrations in mandatory Class I areas, identify chemical species and emission sources responsible for existing man-made visibility impairment, document long-term trends, and to provide regional haze monitoring when obtainable at mandatory Class I areas.

USEPA Speciation Field Guidance Documents Web Page
Link to the USEPA website that features PM2.5 specs and audit procedures.

EPA Compendium Method IO-2.1
This Method is a part of Compendium of Methods for the Determination of Inorganic Compounds in Ambient Air (EPA/625/R-96/010a), which was prepared under Contract No. 68-C3-0315, WA No. 2-10, by Midwest Research Institute (MRI), as a subcontractor to Eastern Research Group, Inc. (ERG), and under the sponsorship of the U.S. Environmental Protection Agency (EPA).

Table for Use in Aerosol Physics
Tables for use in aerosol physic showing unit density and spheres.

Differential Quality
Mesa labs letters on differential quality for the BGI product line.

Technical Note: Leak Test
Instructions for performing a leak test.

Technical Note: Rebuilding a PQ200 Pump
Instructions for rebuilding a PQ200 pump