Welcome to Sunset Laboratory Inc.

aerosol analysis

Sunset Laboratory Inc. is a pioneer in the field of organic carbon and elemental carbon (OC-EC) aerosol analysis and was founded in 1984 by Bob Cary. Read More

Our instruments are used by federal and state government, academic researchers, and private sector industries including: aviation, mining, marine, astronomy, construction, and weather research. Our equipment is suitable for the laboratory or in the field, and ready for use with the NIOSH method 5040, IMPROVE and EUSAAR 2 protocols.

Along with the classic Sunset OC-EC instrumentation for discreet filter measurements Sunset Labs also provides a semi-continuous OC-EC analyzer for near real-time, in-situ measurement of carbon aerosol.

Read more about our Model-4 Semi-Continuous OC/EC Field Analyzer. Read More

Read more about our Lab OCEC Aerosol Analyzer. Read More

Our scientists provide expert analysis of OC-EC samples collected on quartz-fiber or glass-fiber filters.

Our unrivaled customer support includes equipment installation, maintenance, and quality assurance.

Our Products

Lab OC-EC Aerosol Analyzer

Lab OC-EC Aerosol Analyzer

The Lab OC-EC Aerosol Analyzer is the industry standard for environmental and workplace monitoring. This instrument uses a proven thermal-optical method to analyze for OC-EC … [Read More...]



Our Parallel-plate Carbon Filter Denuders remove semi-volatile organic carbon vapors. Without Denuders, absorption artifacts will be present on a following quartz filter. … [Read More...]

Quartz Filters

Quartz Filters

Our quartz filters are pre-fired  and then packaged in Petri dishes or cassettes, and are ready for sample collection. We offer 25mm, 37mm, or 47mm filters in Petri dishes. We also … [Read More...]

Sample Analysis

Sample Analysis

Our scientists can analyze quartz-fiber and glass-fiber filter samples from an extensive array of sources and for a wide variety of applications using Sunset Laboratory … [Read More...]


Contact Us

Please use this form to contact Sunset Laboratory. Your privacy is important to us; your information will not be shared with outside parties. Required fields are indicated in red. … [Read More...]


37th Annual AAAR Conference

October 14-18, 2019 Come see us at the 37th Annual AAAR Conference this October 14-18 in Portland, Oregon.  The conference is being held at the Oregon Convention Center in … [Read More...]