IA19 will take place at the Hong Kong Science & Technology Park in ShaTin.

Hong Kong is very well provided with a range of hotels. The IA19 speakers and guests will stay at the Hyatt Regency, where you will be able to claim a special rate when attending IA19. Other options include the Regal Riverside Hotel and Courtyard Mariott. Sha Tin is about 35 minutes by MTR from Kowloon, you may wish to stay there too.
Hyatt Regency Hong Kong ShaTin
18 Chak Cheung Street, ShaTin, New Territories, Hong Kong
Regal Riverside Hotel
34-36 Tai Chung Kiu Road, Shatin, Hong Kong
Inhalation Asia has negotiated preferential rates with Regal Riverside Hotel
Booking Link: Booking Deadline: 12 Oct 2019
Courtyard Marriott Hong Kong ShaTin
1 On Ping Street, ShaTin, New Territories, Hong Kong

There are a number of other options near the conference center listed on all major travel websites: