If we’re talking about the hazards of e-cigarettes, we should focus more on the dangers posed by their manufacturing materials, e-liquids, and other associated products—especially those from low-quality e-cigarettes.

1. First, some unscrupulous vendors, in their quest for better results, may illegally add harmful substances to e-liquid—such as diethylene glycol instead of propylene glycol, nitrosamines, plasticizers, heavy metals, and other toxic compounds. These substances can cause significant harm to human health. Additionally, depending on individual preferences, flavorings like chocolate or mint are often added to e-liquids; the quality of these flavorings directly determines the extent of the harm caused by the e-liquid.

2. Secondly, some e-cigarettes use batteries of poor quality. These lithium batteries have not undergone mandatory safety and quality certification. Placing such lithium batteries inside the compact housing of an e-cigarette is akin to putting a time bomb in your mouth. The unfortunate incidents involving e-cigarettes that occurred in the U.S. during the first half of the year were precisely caused by these substandard lithium batteries.

3. Additionally, some retailers have been adding excessive amounts of nicotine to e-cigarettes. In mild cases, this can cause users to experience dizziness, nausea, and vomiting; in severe cases, it could even lead to poisoning.

4. Moreover, many e-cigarettes on the market advertise claims such as “7-day successful quit rate—refund if unsuccessful,” overly exaggerating their role as smoking cessation aids and touting them as miraculous tools that can help you quit smoking once and for all. As a result, many smokers purchase these products with excessively high expectations and misguided perceptions. After trying them out, they find that the actual results are nowhere near as miraculous as advertised, leaving them deeply disappointed and profoundly misunderstanding the product. They then light up their traditional cigarettes again, returning to the harmful habit of smoking and significantly undermining their motivation and confidence in quitting altogether.

5. The e-cigarette market is plagued by counterfeit and substandard products, as well as frequent accidents: Both domestically and internationally, there have been numerous cases of counterfeit and substandard e-cigarette products. Moreover, serious accidents caused by quality issues have drawn widespread attention and criticism from media around the world regarding the problems associated with e-cigarette products.

How to Prevent the Dangers of E-cigarettes

Now that the principle is clear, the preventive measures become obvious. Try to choose e-cigarettes manufactured by reputable brands, and especially opt for e-liquids produced by reputable manufacturers.

E-liquids typically indicate their nicotine content. Choose e-liquids with low nicotine levels—don't opt for those with high nicotine content just to get a stronger hit. Don't be tempted by low prices, and stay away from counterfeit or substandard products.