Beginning tomorrow, take advantage of deep tuition discounts and celebrate the back-to-school season with a renewed commitment to turning your home into a health-supporting indoor sanctuary.
Save 25% on all online courses, including our Building Biology Advocate certificate program, and our Residential Microsurge Electrical Pollution video series! Just use the coupon code backtoschool2025 at checkout.
*Ends on September 30, 2025. Does not apply to memberships, room & board, seminars, or professional certifications.
