It reealed staff were exposed to tobacco smoke for 40 hours per week before the ban, compared to 25 minutes per week post ban, a 99% drop in exposure.

• 它显示在这禁令颁布前员工每周要暴露在香烟的烟雾中40小时，而在禁令颁布后，每周仅为25分钟，暴露时间降低99%25。