
Advisor
Chetas Rana, MRSC, CChem, CSci
Senior Manager, Concept Lead Air & Thermal Comfort
Chetas is the Senior Manager and Concept Lead for Air and Thermal Comfort at the International WELL Building Institute (IWBI). With more than 13 years of experience in indoor environmental quality, he focuses on bringing clear, evidence‑based guidance into the WELL Standard to support healthier and more comfortable indoor environments.
Prior to joining IWBI, Chetas spent over a decade at the Building Research Establishment (BRE), working across indoor air quality research, building investigations and laboratory operations. In his final two years at BRE, he was part of the BREEAM Core Science Team, leading the technical direction for indoor air and thermal comfort across BREEAM’s sustainability schemes and supporting updates to health‑related criteria.
Drawing on years of experience in indoor air quality and environmental research, Chetas is dedicated to helping people understand how healthier indoor environments can be achieved anywhere.
Outside of work, Chetas enjoys listening to music, going for outdoor walks and taking long drives with family and loved ones.


