Introduction: The implementation of the smoking ban in hospitals stems from governmental initiative, in accordance with the charter of a tobacco-free hospital signed by our country. In 2008, 9.4% of the healthcare personnel in our CHU were daily smokers. What is the prevalence of this addiction after a decade? The main objective of our work is to determine the evolving trend in the frequency of smoking after a decade among the healthcare personnel of CHU Beni-Messous. The secondary objectives are to compare the level of nicotine dependence between 2008 and 2019 and to understand the steps and methods undertaken by former smokers to successfully quit smoking. Materials and Methods: This is a descriptive cross-sectional study conducted among healthcare personnel at CHU Beni-Messous in Algiers, involving the collection of information on smoking habits through a self-administered anonymous questionnaire. Inclusion criteria: Healthcare personnel present on the day of our visit. Data entry and analysis: Using EPIINFO 6 and EPIDATA software after validation and coding of the data. Results: A total of 604 healthcare personnel participated in the study during the first survey in 2008, and 600 individuals in 2019. The sex ratio was 0.83 and 0.5, respectively. The prevalence of smoking among the healthcare personnel at our hospital slightly increased, with the rate rising from 9.5% in 2008 to 10.83% in 2019 (DNS), which tarnishes the image of our institution. The proportion of male daily smokers increased by 60.1% over a decade (rising from 16.9% to 26.9%, p < 0.01). As for passive smoking, it increased by 37.5% among females (rising from 16% to 22%, p < 0.04). The proportion of heavy smokers (≥ 20 cigarettes per day) significantly increased between 2008 and 2019, from 6.6% to 55.2% (p < 0.001). Tobacco dependence assessed by the Fagerström test showed that 46% of smokers had high dependence in 2008, compared to 41% in 2019 (DNS). 53.40% consume tobacco even during working hours, compared to 73.3% in 2008 (p < 0.02). In the first survey in 2008, 42.2% of daily smokers had no intention of quitting smoking, compared to 31% in 2019. 49% in 2008 and 45% in 2019 of occasional and daily smokers made at least 2 to 5 attempts to quit smoking. The reasons for a potential cessation of smoking are interesting to know; ex-smokers (4.5%) reported health problems in 40.7% of cases, guilt was mentioned in 22.2% of cases, religious conviction in 14.80% of cases, as well as advice from a friend, family member, and/or doctor, while economic reasons were cited in only 11.1% of cases. Conclusion: Tobacco smoke is dangerous for all who inhale it (patients, hospital staff, and visitors), and the hospital should promote health. Legislative changes in recent decades have aimed to ban smoking within hospitals, but this remains insufficient. Emphasis should be placed on awareness and prevention with active support for smokers during cessation. The tobacco cessation support unit should be operational to assist candidates in their cessation efforts.