About Us
The Team
Wylie Li - MPH, ROH
Co-principal Occupational Hygienist
As a Registered Occupational Hygienist, Wylie brings a decade of expertise in the field of occupational hygiene. He completed his Master's degree in Public Health, specializing in Occupational and Environmental Health, at the University of Toronto. In founding COHS in 2022, his goal is to bring professional occupational hygiene services to under-served workplaces.
His portfolio consists of clients covering the manufacturing, lumber, biotechnology, education, construction, and fire and flood restoration industries. Wylie currently services as the Vice Chair of the CSA Technical Sub-committee on Energy-Based Medical and Surgical Devices and as Laser Safety Subject Matter Expert for College of Physicians and Surgeons of BC's Non-Hospital Medical and Surgical Facilities Accreditation Program.
Micah Ho - MSc, CIH
Co-principal Occupational Hygienist
Micah is a highly qualified professional with a Master of Science in Occupational and Environmental Hygiene from the University of British Columbia, with a Certified Industrial Hygienist (CIH®) designation.
With a career that spans significant roles in education, municipal, healthcare and industrial sectors, he has a proven track record of managing complex exposure risks and providing senior-level technical oversight. He is able to translate rigorous, evidence-driven data into practical health and safety strategies and controls that are cost effective, compliant and easily integrated into operations.
Our Values
What we stand for
Professionalism
We believe that occupational hygiene is more than just compliance; it is a commitment to the highest standards of integrity and technical mastery. Our team consists of highly qualified professionals—all holding graduate degrees and ROH® or CIH® designations—who bring a sophisticated level of rigor to every project. We don’t just deliver data; we provide expert guidance that reflects the situation and puts your team's health and your company’s reputation at the forefront.
Evidence Driven Decision Making
We operate at the intersection of science and safety. In an industry where "good enough" can have serious consequences, we rely exclusively on evidence-driven decision making. We provide a clear and objective picture of your workplace environment. Our recommendations aren't based on guesswork; they are carefully crafted insights derived from hard evidence, ensuring that the solutions we implement are both effective and defensible.
Accessibility & Customer Focus
We understand that navigating health and safety regulations can be complex, which is why we prioritize accessibility. Our customer focused approach ensures we work with you at every step along the way. We bridge the gap between technical science and practical application, making our expertise available to organizations of all sizes and sectors. By listening closely to your specific operational needs, we ensure our strategies are not only scientifically sound but also seamlessly integrated into your unique workflow.