School managers are charged with the responsibility of ensuring that optimum levels of hygiene are maintained in washroom areas.

Hand dryers are often touted as being a more hygienic way for students to dry their hands as compared to the use of paper towel dispensers. This continues to prompt a large number of schools to replace paper towel dispensers with electric hand dryers. Here are two things that a school manager should consider when looking to invest in a hand dryer for their school.

The Higher The Speed, The Better

Electric hand dryers often operate at varying speeds. The speed of operation refers to the average amount of time it would take for a hand dryer to generate sufficient airflow required to dry a wet pair of hands.

High-speed hand dryers are often preferred for use in schools because they increase the likelihood that students will leave the washroom with dry hands. Students are a peculiar lot and many of them won't have the patience to use a hand dryer for as long as they should in order to dry a wet pair of hands.

Thus, investing in high-speed dryers increases the chances that the student's hands will have already been dried before they run out of patience and out of the washroom.

The Question Of Energy Efficiency

The question of energy efficiency should also feature among the various factors to consider when looking to invest in a hand dryer.

For example, the average student might need to wash their hands at least three times a day. This means that he or she is likely to use a hand dryer at least three times daily. In a school that has a student population of say 150, hand dryers installed in different locations around the school are likely to be used 450 times (cumulatively) on a daily basis. If each student was to spend three minutes every time he or she used a dryer, this would translate to approximately 27 cumulative hours of non-stop hand dryer operation.

Energy efficiency in a hand dryer is given in form of an energy rating often indicated on the dryer itself—on its packaging or in its user manual. The acquisition cost for a dryer that has a higher energy rating is likely to be higher than that of a lower-rated dryer. However, the extra cost pays for itself in the long-term energy savings that the learning institution stands to make.