Electric fans are useful and important appliances that can provide comfort, health, and energy benefits for users and society at large.
An electric fan is a device that uses an electric motor to rotate a set of blades or vanes that move air. The air movement creates a wind chill effect that lowers the perceived temperature and makes people feel more comfortable. Electric fans can also increase the airflow and ventilation in a room, improving the air quality and preventing the accumulation of heat, moisture, or odours.
Electric fans work by converting electrical energy into mechanical energy. The electric motor in the fan receives an alternating current (AC) or direct current (DC) from a power source, such as a wall socket, battery, or solar panel.
The motor then spins a shaft that is connected to the blades or vanes of the fan. The blades or vanes are angled to push or pull air in a certain direction. The speed and direction of the fan can be controlled by a switch, knob, remote, or sensor.
The history of electric fans can be traced back to the 19th century when inventors and engineers experimented with different ways of creating artificial wind.
The first electric fan was patented by Schuyler Skaats Wheeler in 1882 in the United States. He used a simple DC motor to power a two-bladed desk fan. The fan was marketed as the "Electric Breeze" and sold for $10.
In 1886, Philip Diehl invented the first ceiling fan by attaching a fan blade to a sewing machine motor. He later improved his design by adding a light fixture and a variable speed control. In 1909, General Electric introduced the first oscillating fan, which could move from side to side automatically. In 1910, Westinghouse Electric Corporation developed the first reversible fan, which could blow air either forward or backwards.
Electric fans became more popular and widespread in the 20th century, as they were cheaper and more efficient than other cooling methods, such as ice blocks or water sprays. Electric fans also became more diverse and sophisticated, as they were adapted for different purposes and environments, such as industrial, commercial, agricultural, or domestic use.
Electric fans also incorporated new features and technologies, such as timers, thermostats, humidifiers, ionizers, filters, and remote controls.
Electric fans have many benefits for users and society at large. Some of the benefits are:
· They provide comfort and relief from heat and humidity by creating a cooling breeze and lowering the perceived temperature.
· They improve the air quality and ventilation in a room by increasing the airflow and removing stale or polluted air.
· They reduce cooling systems' energy consumption and environmental impact by supplementing or replacing air conditioners or refrigerators.
· They are affordable and accessible to most people, as they are relatively cheap and easy to operate and maintain.
· They are versatile and adaptable to different needs and preferences, as they come in various shapes, sizes, styles, and functions.
There are many different types and styles of electric fans for sale available in the market today. Some of the common ones are:
· Ceiling fans: These are fans that are mounted on the ceiling of a room. They usually have four or five blades that rotate horizontally to create a downward airflow. Ceiling fans are suitable for large rooms with high ceilings.
· Pedestal fans: These are fans that are mounted on a tall stand or pole that can be adjusted in height. Pedestal fans are suitable for medium-sized rooms with low ceilings. They can also be tilted or oscillated to direct the airflow in different directions.
· Table fans: These are small fans that are placed on a table, desk, or shelf. They usually have two or three blades that rotate vertically to create a forward airflow.
· Tower fans: These are slim and tall fans that are placed on the floor or a base. They usually have multiple blades that are hidden inside a cylindrical casing. Tower fans are suitable for narrow spaces or modern decor. They can also have various features, such as timers, thermostats, ionizers, or remote controls.
· Wall fans: These are fans mounted on a room's wall. They usually have three blades that rotate vertically to create a forward airflow. Wall fans are suitable for rooms with limited floor or ceiling space.
· Box fans: These are square or rectangular fans that are placed on the floor, window, or wall. They usually have three blades that rotate horizontally to create a forward airflow. Box fans are suitable for rooms with large windows or openings.
· Misting fans: These are fans that spray a fine mist of water along with the airflow. Misting fans are suitable for outdoor use or hot and dry climates. They can also help lower the temperature and increase the humidity in the air.
Choosing the right fan for sale that fits your needs and preferences can be a challenging task, as there are many factors to consider. Some of the factors are:
· The size of the fan should match the size of the room or space where you want to use it. A general rule of thumb is to divide the area of the room by 25 to get the diameter of the fan in inches.
· The power of the fan should match the airflow and cooling effect you want to achieve. A general rule of thumb is to multiply the diameter of the fan by 10 to get the wattage of the fan in watts.
· The noise of the fan should match your tolerance and preference for sound. A general rule of thumb is to check the decibel level (dB) of the fan, which measures how loud it is. The lower the dB, the quieter the fan.
· The features of the fan should match your needs and convenience for operation and maintenance. Some of the common features are speed settings, oscillation, tilt, timer, thermostat, ionizer, filter, remote control, or light fixture.
· The style of the fan should match your taste and decor for aesthetics and design.
Most reputable brand fans, including Homestar, Goldair, Russell Hobbs, Salton, Pineware, Eurolux, and more, are available from MHC World.