Objective:We launched the fourth national hyperbaric oxygen(HBO)medicine week publicity campaign in China to increase patients’and medical professionals’understanding of HBO medicine and expand the influence of HBO.Methods:The theme of 2019 was“Oxygen protects life,healthy China”.The main components of the campaign were free medical consultation,free HBO experience,and telemedicine lectures.At least one component was required for each participating hospital.Results:(1)In total,195 hospitals in 26 provinces,autonomous regions,and municipalities directly under the central government participated in the campaign.Shandong province of China had the highest number of hospitals in a single area(48 hospitals);(2)The free medical consultation was organized by the HBO department.In some hospitals,other medical professionals were also invited.Among all hospitals,up to 13 different HBO-related departments participated;(3)The free HBO experiences were held in some hospitals,and the number of experiences ranged from one to three per person;(4)Three telemedicine lectures involving a total of 8 live interactions were held in 55 different hospitals.Lecture videos were provided to play locally in hospitals without the setting necessary for live interactions.Conclusion:Our campaigns created a brand effect beginning in 2016.In the herein-described 2019 study,we considered the previous three campaigns and explored different methods of publicizing HBO medicine in China,including telemedicine.