Car dryers are air blowers that are used to dry a vehicle after it has been washed. They are not always included in car wash systems, but they are often preferred by customers because they reduce the presence of water spots after washing. Automatic car washes often use car dryers as the last step in the wash system.
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Washing is an important part of a car maintenance regimen. Regularly cleaning a car's exterior and interior can help increase the car's longevity. This is because when a car is washed, build up of dirt and corrosives like road salt can be removed, decreasing the chances that the car's body or undercarriage will be negatively affected by the accumulation of contaminants picked up on the road. In addition to its value as a maintenance process, washing contributes to a car's aesthetic appeal. While drying will happen as a natural result of driving after a car wash, using heated air blowers for drying immediately after a wash cycle can greatly reduce the occurrence of water spots, which accumulate after a wash cycle as a car dries. Many car wash systems include heated drying equipment for this reason.
Self service car washes sometimes offer stand-alone or hand-held dryer systems in each bay. In order to prevent mechanical failures and breakdowns, it is important to regularly inspect and perform maintenance on car dryer systems. Worn motor bearings, foreign objects in the blower or a missing balance weight all cause abnormal and noticeable vibrations, a strong clue that repairs are in order. The power of car dryers is measured in CFM (cubic feet per minute), which describes the volume of air being moved by the dryer. A dryer's CFM is not necessarily correlated with drying speed. In general, the higher the dryer's velocity, the faster the car will dry. There are two methods of car wash drying systems. The first is light touch, which comes in physical contact with the car. It provides the most efficient and quietest process, which also saves on energy because of the small distance between the blower and the vehicle. Touchless dryers never come in contact with the car but are noisier and waste more energy than their alternative. A car wash owner should carefully weigh the costs and benefits of installing a dryer in advance of such a decision.
