How many types of electronic cigarettes are there?

There are various types of electronic cigarettes, which can be classified based on their structure, battery capacity, appearance, type of liquid, and smoke generation mechanism. There are two main types of structures: integrated and detachable. The battery capacity usually ranges from 200mAh to 3000mAh, and its appearance ranges from short and portable to cigar like. In terms of tobacco liquid, there are different nicotine contents and flavors. In terms of the mechanism of smoke generation, there are mainly two ways: thermal atomization and cold atomization.
Basic classification of electronic cigarettes
Classification based on structure
Integrated electronic cigarette
Integrated e-cigarettes are the simplest and most convenient type. The main components include a built-in battery and a fixed liquid storage device. This type of electronic cigarette does not allow users to replace the battery or liquid, so the entire device needs to be replaced after the liquid runs out or the battery life ends.
Main components and functions:
Built in battery: Provides power for e-cigarettes.
Fixed tobacco liquid storage device: stores tobacco liquid, once used up, it cannot be refilled.
Detachable electronic cigarette
Unlike integrated e-cigarettes, detachable e-cigarettes allow users to replace batteries and liquid storage (commonly referred to as "Pod" or "Tank"). This allows customization of e-cigarettes based on personal taste and needs.
Main components and functions:
Replacing batteries: Typically, 18650 batteries or other rechargeable batteries are used.
Detachable cigarette liquid storage device: Different flavors and nicotine concentrations of cigarette liquid can be added according to personal taste.
Classification based on battery capacity
Small e-cigarettes
Small electronic cigarette sets have a lower battery capacity, typically between 200mAh and 600mAh. These devices are suitable for short-term and infrequent use.
Main components and functions:
Low capacity battery: The battery has a short lifespan and requires frequent charging.
Smaller smoke liquid storage capacity: Due to its small volume, the amount of smoke liquid stored is also relatively small.
Large electronic cigarettes
Large electronic cigarettes have higher battery capacity, usually above 1000mAh, and are suitable for frequent and long-term use.
Main components and functions:
High capacity batteries: provide longer usage time.
Large capacity liquid cigarette storage device: can store more liquid cigarette and reduce the number of refills.
Classify according to appearance
Pen shaped electronic cigarette
Pen shaped e-cigarettes are named after their pen shaped design and are one of the most common types of e-cigarettes.
Main components and functions:
Slender battery: designed in the shape of a pen, easy to carry.
Small smoke liquid storage device: matches its slender appearance.
Box type electronic cigarette
Box type electronic cigarettes have a shape similar to a small box, usually with higher battery capacity and more advanced control functions.
Main components and functions:
Large capacity battery: usually built-in or replaceable, providing longer usage time.
Advanced control panel: allows users to adjust temperature, voltage, etc.
Tubular e-cigarettes
Tubular e-cigarettes mimic the shape of traditional pipes or cigarettes, typically with relatively small battery and liquid capacities.
Main components and functions:
Tubular battery: designed in a tubular shape, providing a more traditional smoking experience.
Small smoke liquid storage device: matches its tubular shape.
The type of liquid used in electronic cigarettes
Nicotine content
No nicotine
Nicotine free tobacco mainly includes food grade ingredients such as glycerol, propylene glycol, and food grade spices. This type of liquid is suitable for users who do not want to consume nicotine.
Main components and functions:
Glycerol and propylene glycol: produce smoke.
Food grade spices: provide flavors.
Low nicotine
Low nicotine liquid typically contains 3mg or 6mg of nicotine. This applies to those who are trying to reduce nicotine intake or novice e-cigarette users.
Main components and functions:
Nicotine: produces addictive and throat sensation.
Glycerol and propylene glycol: produce smoke.
High nicotine
High nicotine liquid typically contains 18mg or more of nicotine. This type of smoke liquid is usually suitable for heavy smokers or those who require a stronger nicotine satisfaction.
Main components and functions:
High concentration nicotine: strong addiction and throat sensation.
Glycerol and propylene glycol: produce smoke.
Flavor classification
Tobacco flavor
Tobacco flavored tobacco liquid attempts to mimic the taste of traditional tobacco products. This type of tobacco liquid typically contains a range of tobacco extracts and spices to replicate the complex flavor of tobacco.
Main components and functions:
Tobacco extract: Provides tobacco flavor.
Spices: increase complexity and layering.
Fruity flavor
Fruit flavored tobacco liquid uses various food grade spices to mimic the flavors of various fruits, such as apples, grapes, strawberries, etc.
Main components and functions:
Food grade spices: mimic the taste of fruits.
Glycerol and propylene glycol: produce smoke.
Candy flavor
Candy flavored tobacco liquids typically use high concentrations of sweeteners and spices to mimic the taste of various candies and desserts.
Main components and functions:
Sweetener: Provides sweetness.
Food grade spices: mimic the taste of candy or desserts.
The smoke generation mechanism of electronic cigarettes
Thermal atomization
Using electric heating wire for thermal atomization
Thermal atomization is the most common way of producing electronic cigarette smoke. In this method, the electronic cigarette heats the liquid to a certain temperature through the built-in electric heating wire, thereby producing smoke. Usually, this method can more accurately control temperature and smoke levels.
Main components and functions:
Electric heating wire: heats the liquid to produce smoke.
Temperature control: Users can adjust the temperature of the electric heating wire according to their personal preferences.
Thermal atomization with TC (temperature control) function
Some advanced electronic cigarette devices have temperature control (TC) function, allowing users to set specific heating temperatures. This feature can provide a more stable and consistent smoking experience.
Main components and functions:
Temperature sensor: Real time monitoring of electric heating wire temperature.
Advanced Control Panel: Allow users to set and adjust temperatures.
Cold atomization
Ultrasonic cold atomization
Some electronic cigarettes use ultrasonic cold atomization technology to convert the liquid into smoke. This method does not rely on heating, so it can better preserve the original taste of the smoke liquid.
Main components and functions:
Ultrasonic generator: uses high-frequency vibration to atomize smoke liquid.
No temperature control: Due to the lack of heating, there is no need for temperature control.
Pressure driven cold atomization
Another cold atomization method is to spray the smoke liquid into very small droplets through pressure, thereby forming smoke. This method is commonly used for high-end and professional level electronic cigarette products.
Main components and functions:
High pressure nozzle: Spray the smoke liquid in a high-pressure form.
Droplet size control: Control the droplet size of smoke by changing the pressure.
The battery and charging method of electronic cigarettes
Built in battery
Lithium ion built-in battery
Most built-in battery e-cigarettes use lithium-ion batteries because they have high energy density and a longer lifespan. This type of battery is generally not replaceable by the user.
Main components and functions:
Lithium ion batteries: provide power for electronic cigarettes.
Fixed design: Users cannot easily replace batteries.
Polymer lithium battery
Another common type of built-in battery is polymer lithium battery, which is smaller and lighter in size, but usually has lower battery capacity.
Main components and functions:
Polymer lithium battery: provides power for small or ultra-thin electronic cigarettes.
Miniaturization design: suitable for users who pursue portability.
Replaceable battery
Single battery mode
This type of e-cigarette usually has a battery compartment, and users can replace the battery themselves. This design makes e-cigarettes more convenient when the battery is depleted.
Main components and functions:
Battery compartment: stores replaceable batteries.
Battery model: Standard batteries such as 18650 or 21700 are usually used.
Multi battery mode
Some high-end e-cigarette devices adopt a multi battery mode, which can use two or more batteries simultaneously to extend usage time and increase performance.
Main components and functions:
Multi battery compartment: can store multiple batteries.
Performance improvement: By using multiple batteries to provide higher voltage or current.
Charging method
USB charging
Most modern e-cigarettes support charging through a USB interface, which is convenient for users to charge in various situations.
Main components and functions:
USB interface: used to connect charging cables.
Fast charging: Some models support fast charging functionality.
Wireless charging
Some high-end models even support wireless charging, and users only need to place the e-cigarette on the charging board.
Main components and functions:
Wireless charging board: used for wireless charging of electronic cigarettes.
Convenience: No cables need to be connected.