about 1 hour, 210-330 ports can be pumped under slow power, and the waterproof level reaches IP56, “can prevent strong splashing water”. FLOW's e-cigarette is a "rebounding atomized smoke", which uses a smoker cartridge containing nicotine salt (used in place of nicotine). These types of electronic cigarettes are often referred to as "smoke" and have become popular in the market in recent years. They are characterized by no burning waste such as tar and carbon monoxide, which can effectively reduce the harm compared with traditional tobacco.