Desk Fans

A desk fan is a small, lightweight and portable fan used for personal cooling. They are also called personal fans and task fans. There are mains powered models for use in the home or office, and low voltage models for use in the car, caravan or boat. They are energy efficient, use little power and have a small running cost. Most desk fans need to be assembled before they can be used, and they also need to be disassembled for cleaning.

The main feature to look for when choosing a desk fan is whether it is fixed or oscillating. Oscillating fans change the direction of the air flow by rotating the fan unit from side to side, or by rotating vanes in front of a fixed fan. A head lock enables an oscillating fan to be turned into a fixed fan with the push of a button. An adjustable neck allows the fan unit to be tilted up and down, allowing the air flow to be directed at head height even when the fan is placed on the floor or shelf.

Other features to look for are the number of speed settings and the blade diameter. Some fans have no speed controls and operate at one speed only but most fans have at least three speed settings. Some fans have a fully adjustable speed controller but these models are usually more expensive. The blade diameter is a measure of how much air flow the fan can produce at a particular speed, and this value is often found printed on the package in inches. A fan with a larger diameter produces more air flow than one with a small diameter but also uses slightly more power.

A good desk fan should also have non-slip feet, long cord length and a large cage. Fans often vibrate because the blades are slightly out of balanced, so having non-slip feet stops the fan from moving about. To avoid using extension cords, the fan cord should be long enough to reach a power point. Many cords are over four feet in length so this is usually not a problem. The cage should be large enough that children cannot put their fingers through it and touch the fans blades. Although most blades are made of plastic, being hit by one still hurts.

In order to save money, manufacturers usually package a desk fan in several pieces. Some of the smaller fans are ready to use straight out of the box but most fans need to be assembled by the customer. The base may need to be attached to the stand with screws but often the parts just snap together. The fan blades may need to be connected to the motor with a locking nut, and the cage may need to be secured around the blades. A cage usually comes in two halves which are joined together using screws or tabs.

Over time, a desk fan will accumulate a large amount of dust on its blades, motor and cage. To properly clean a fan, at least one half of the cage needs to be removed. Tabs can be pushed open easily enough but removing screws requires a screwdriver with the right head. This can be a problem if the manufacturer has used special screws that do not fit a regular screwdriver. However, these special screwdrivers can be found at most hardware stores. Once the cage has been removed, the parts can be cleaned with a cloth.

A desk fan is a very dynamic device so a certain amount of noise and vibration is unavoidable. Most fans are quiet on their lowest speed setting but become louder as their speed increases. Good quality fans don’t have much of an increase but others can become very noisy. Any imbalance in the blades will also cause vibrations which get worse as the speed increases. It’s not always possible to inspect a fan before buying one, so reading product reviews and user comments on shopping websites is useful for avoiding those fans with noise problems.

This Desk Fans Review is Written/Updated on Jul 10th, 2009 and filed under Home Appliances. Both comments and pings are currently closed.

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