Expert-level Instructors

Professional Curriculum System

Dr. Lü has 20 years of work experience in the environmental, health and safety profession, including 15 years of study and work experience in the US. He has provided EHS training in either English or Chi-nese to more than 3000 attendees in more than 20 countries.

David Lv


Everett Langford


Dr. Langford is an expert in environmental, health, safety, and security (EHSS) and has over 40 years of experience in toxicology, safety, industrial hygiene, and environmental protection. He worked as the global industrial hygiene manager of Huntsman Corporation and the EHSS manager of Shanghai Lian-heng Isocyanate Co., Ltd. He has extensive international work experience in the field of EHSS in coun-tries such as Bosnia, Croatia, Korea, and China (4-year expatriate assignment).

Neil Zimmerman


Dr. Zimmerman is an expert in industrial hygiene with more than 33 years of experience in EHS consult-ing, teaching/training, research, engineering controls and litigation support. He is a professor emeritus in industrial hygiene at Purdue University. He has conducted numerous consulting projects involving sampling, monitoring, surveys, and engineering controls. Dr. Zimmerman is interested in a wide range of topics related to the broad area of Industrial Hygiene, including exposure assessment and sampling strategy issues, ventilation and personal protection equipment control issues, and indoor air quality is-sues.

Hui Fang


Fang Hui has more than 15 years of experience in a wide range of industrial applications such as semi-conductor manufacturing, medical service facilities, and consulting services/technology companies. She is familiar with hazard prediction, identification and assessment, and has extensive experience in haz-ardous material engineering control applications and radioactive source safety. In addition, she has extensive experience in the implementation of operational excellence management system (OEM) au-dits, noise investigations, ergonomics risk control, development and provision of occupational health and hygiene-related training courses.

Niki Xu

M.Sc., CSP, PMP, Six Sigma Black Belt

Niki has over 25 years of EHS professional experience working for multi-national companies (MNC) in both Canada and China. She has enriched experience in EHS consulting and EHS management. Her technical expertise includes management of occupational health and safety programs, regulatory per-mitting and compliance, environmental and sustainability, due diligence and transition projects, facilities & maintenance systems management, safety culture transformation, safety performance enhancement.

Nu Yu


Dr. Yu has over 20 years of work and research experience in the environment, health, and safety pro-fession, including 16 years of experience in the United States. She has served on the emergency re-sponse committee and managed various biosafety and industrial hygiene programs in the United States. Dr. Yu has extensive experience in laboratory safety, exposure assessment, respiratory protec-tion, atmospheric environment issues, transportation safety, and occupational health and safety risk recognitions. She also has an in-depth understanding of work related social-psychological risk factors, and occupational diseases affecting the safety and security in workplaces.