Half off on all our Online Courses and Self-directed Training Throughout January 2024
Select the categories of your most vital interest • Enroll in as many courses as you like from the list below
Use Coupon Code helmut38 to save 50% on every course and/or training you choose!*
- Building Biology Advocate Certification
- Guided Home-study Course (Natural Healthy Buildings)
- Indoor Environmental Quality Courses
- Electromagnetic Radiation Courses
- Healthy Design + Building Courses
- Webinar: Residential MEP (Microsurge Electrical Pollution, aka Dirty Electricity)
*Seminars, membership, and certifications are not included.