About & Contact Us
Welcome to 608Pass. We are dedicated to providing the best AI-powered study tools for HVAC professionals preparing for their EPA Section 608 certification.
Operating Entity
608Pass is independently developed and operated by Guo Xiaosheng, a solo entrepreneur and software engineer based in China.
Contact Information
If you have any questions regarding our products, support, or data privacy, please reach out via:
Email:
support@608pass.com
support@608pass.com
Mailing Address:
Room 402, Building 3, No. 12 Jihua 4th Road
Chancheng District, Foshan, Guangdong, China
Room 402, Building 3, No. 12 Jihua 4th Road
Chancheng District, Foshan, Guangdong, China
Business Hours:
Monday – Friday, 9:00 AM – 6:00 PM (GMT+8)
We usually respond within 24-48 business hours.
Monday – Friday, 9:00 AM – 6:00 PM (GMT+8)
We usually respond within 24-48 business hours.