Advanced Chemical Sensors (ACS) was founded in 1976 by Laurence D. Locker, (Ph.D., MIT) with a focus on developing better methods for measuring employee exposure to toxic vapors in compliance with U.S. occupational safety laws. The company pioneered a passive monitoring technique using solid adsorbents to eliminate the need for mechanical pumps, making air monitoring easier and more cost-effective. ACS products, including chemical monitoring badges, are utilized in various applications to improve indoor air quality, ensure OSHA compliance, and reduce chemical exposure. The company's accredited laboratory offers quick turnaround times for analyzing air samples, and ACS is certified by reputable organizations like AIHA-LAP, LLC and ISO.