The outbreak of severe acute respiratory syndrome (SARS) claimed the lives of 286 Hong Kong people in 2003. Since then, the Hong Kong government has been promoting the benefits of proper hand hygiene. There are few studies that explore the general quality of handwashing and the hand-hygiene practices of the public of Hong Kong; given this, the aim of this study is to explore this neglected topic. This study is a quantitative study that was conducted in January 2018. The results show that the majority of participants only wash their hands after using the toilet (87%) or handling vomitus or faecal matter (91%). The mean duration of handwashing was 36.54 seconds (SD = 18.57). The areas of the hand most neglected during handwashing were the fingertips (48.1%), medial area (30.5%), and back of the hand (28%). A multiple logistic regression shows that participants who have reached third-level education or higher often tend to be more hand hygienic than those who have not reached third-level education (p≤0.001, B = 1.003). Thus, participants aged 30 and above tend to neglect 5 more areas of the hand than those aged below 30 (p=0.001, B = 4.933).