Evidence of the benefits of e-cigs in aiding smoking cessation is at best theoretical with no definitive evidence
Computers are integral to school and work life, so screens need to be included in the recovery process
If you are just starting using e-cigarette most pre-built atomizers are safe to use with the majority of e-cigarette batteries

Recommended e-cigarettes Volt, by Smokeless Image Pros: Excellent vapor production Strong battery life Great customer service Good e-liquid flavor selection Best product overall for the average user Cons: Poorly constructed PCC Lacks the option of a significantly larger battery V2 cigs Pros: Great vapor production Solid battery life Excellent PCC and other accessories Cons: Slightly less-solid battery construction E-liquid flavors arent great TGo, by Apollo Pros: Excellent battery life Great vapor production Good e-liquid flavor selection Cons: Some report customer service issues (though others say Apollo has the best customer service) ProVari, by ProVape Pros: Best battery life Adjustable voltage Excellent vapor production Cons: Bulky, bad for portability Downsides The most significant downside to e-cigarettes, in terms of user experience, is managing the charging of the batteries, which is done using either a USB, wall or car charger, or PCC

Patch testing can be a useful technique to detect and avoid skin reactions