This certificate confirms that Helder Alexandre Neto Marques successfully completed the online course "Introduction to Indoor Air Quality" offered through Coursera and authorized by The Hong Kong University of Science and Technology. The certificate can be verified online at the provided URL.

1. J un 10, 2023
HELDER ALEXANDRE NETO
MARQUES
Introduction to Indoor Air Quality
an online non-credit course authorized by The Hong Kong University of Science and
Technology and offered through Coursera
has successfully completed
Christopher Chao
Adjunct Professor
Department of Mechanical and Aerospace Engineering
Verify at:
https://coursera.org/verify/87Y3XUKYSPWG
Cour ser a has confir med the identity of this individual and their
par ticipation in the cour se.