These covariates include (1) the e-cigarette product (e.g., type of device, nicotine content and delivery, flavorings or other contents of the e-liquid), (2) pattern of current use (e.g., frequency of use, duration of use), and (3) user characteristics (particularly interest in quitting and prior history of e-cigarette use, but also demographics and smoking history) (Malas et al., 2016)
Like all Airpura units, the T400 models feature an all-metal powder-coated housing eliminating any plastic off-gassing while ensuring long-term durability
There are 200 cigarettes in a carton
Further associated symptoms were mood swings, fatigue, problems with concentration and memory, gastrointestinal complications, anxiety/panic/fears, and sleep disturbance (Additional Table 1)