Is It Alarmist to Say Vaping Devices Contain Formaldehyde?

As the weather gradually cools down, the release of formaldehyde also decreases significantly with the drop in air temperature and humidity, but the harm of indoor formaldehyde to people's health continues unabated, even worsening. Why is this?

Formaldehyde is not only present in home decoration industries but also exists in traditional cigarettes in large quantities. Is the claim that e-cigarettes contain formaldehyde alarmist or is it true?

As the weather gradually cools down, the release of formaldehyde decreases with the drop in air temperature and humidity, reaching a yearly low. However, in the cold winter months, formaldehyde volatilizes indoors at four times the usual rate.

Firstly, in summer, due to high temperatures and humidity, formaldehyde release peaks, making it easily detectable by the human body. As autumn and winter arrive, the temperature drops and the climate becomes dry, leading to lower formaldehyde release. Secondly, insufficient ventilation means that air circulation is reduced, and the indoor temperature remains suitable, creating a very favorable "living environment" for indoor air "pollutants," allowing formaldehyde to "freely volatilize."

Formaldehyde is a colorless, flammable gas with a strong odor. Our bodies naturally produce small amounts of formaldehyde, but most formaldehyde is released into the environment through the burning of fuels and household waste. It is also an industrial chemical widely found in various applications. It is used in the production of building materials (including pressed wood products) and many household products, and is even part of the process of making wrinkle-resistant fabrics. Formaldehyde is also used in glues, adhesives, and disinfectants, and can come from cosmetics, cleaning agents, pesticides, disinfectants, preservatives, printing inks, paper, textile fibers, and various light industrial products.
 
Surprisingly, formaldehyde is also used to inactivate live viruses and toxins used in vaccines. This process is regulated by the U.S. Food and Drug Administration.

The main hazards of formaldehyde manifest as irritation to the skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people experience discomfort. A concentration greater than 0.08mg/m³ can cause redness, itching of the eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, wheezing, and dermatitis. Newly renovated rooms often have higher formaldehyde levels, which are a major trigger for many diseases.

When formaldehyde concentration reaches 0.06-0.07mg/m³, children may experience mild wheezing; at 0.1mg/m³, there will be unpleasant odors and discomfort; at 0.5mg/m³, it can irritate the eyes and cause tearing; at 0.6mg/m³, it can cause throat discomfort or pain. At higher concentrations, it can lead to nausea, vomiting, coughing, chest tightness, wheezing, and even pulmonary edema; at 30mg/m³, it can be immediately fatal.

Recently, there have been reports claiming that "e-cigarettes produce formaldehyde at levels 10 times more harmful than regular cigarettes," which have been widely reported and cited by many media outlets. This statement has instilled fear among many e-cigarette consumers due to a lack of comprehensive understanding of formaldehyde and e-cigarettes.

Currently, most popular small e-cigarettes produce significantly less formaldehyde compared to larger vapor devices. All e-cigarettes will produce some formaldehyde during use, but some high-end devices favored by users may produce more harmful substances, as small e-cigarettes typically vaporize at around 190 degrees Celsius, while formaldehyde is released at temperatures above 400 degrees Celsius (the temperature of ignited cigarettes is at least 800 degrees Celsius, and larger vapor devices vaporize at around 220 degrees Celsius). This means that small e-cigarettes are relatively safer than traditional cigarettes and larger vapor devices, as higher temperatures and larger vapor volumes lead to more formaldehyde production.
 
The principle of formaldehyde production: eight volatile carbonyl compounds generated from the cleavage of propylene glycol and glycerin; the main solvents in e-cigarettes are propylene glycol and glycerin, which undergo cleavage reactions at high temperatures to produce formaldehyde. #p#分页标题#e#

A report from the British Medical Journal NEJM concluded: "When smokers use high voltage, high power e-cigarettes under extreme conditions, they can indeed produce a certain level of aldehydes—but such extreme conditions are unlikely to occur. Addiction (a research institution) conducted a study led by cardiologist Dr. Konstantin, which found that e-cigarettes may produce aldehydes, but only under conditions known as "dry hits."

A formaldehyde concentration of 0.2mg/m³ is considered excessive. China's "Indoor Air Quality Standards" stipulate that the limit for formaldehyde in indoor air for Class II civil construction projects is 0.10mg/m³, and for Class I civil construction projects, it is 0.08mg/m³. Class I civil construction projects include residential buildings, hospitals, school classrooms, elderly buildings, and kindergartens.

Cardiologist Dr. Konstantin explained in layman's terms: "Our research results confirm previous opinions that e-cigarettes may produce a certain level of aldehydes; however, this was observed under dry hit conditions. In reality, the voltage and power of e-cigarettes are rarely raised to the levels mentioned in the study, as the taste becomes unpleasant. Even when using high-power e-cigarettes, the formaldehyde emissions are still far lower than those of traditional cigarettes. Professor Peter Hayek stated: "Users of e-cigarettes under normal conditions will not reach dangerous levels of formaldehyde; e-cigarettes are at least 95% safer than smoking traditional cigarettes."

However, the market is flooded with various types of e-cigarettes, and the quality of devices, e-liquids, and even raw materials varies greatly, directly affecting the user experience and the overall reputation of the industry.