| By :
Debbie Davis
Classroom air that is stagnant and polluted can literally make everyone sick. Continually filtering germs, odors, gases, and particulates can greatly increase your production level and that of your students. By avoiding the following 5 features, you will select a purifier that can keep you and your students healthier. Plastic Casing---Very often units with plastic casings are considerable cheaper than those made of steel. You may cut costs initially by selecting a plastic case, but when off-gases fumes you will need to spend more money on a cleaner that doesn't.. Your purifier needs to run 24 hours a day. Motor heat can often cause the plastic case to emit noxious fumes into your air after the cleaner has been on for a while.. The last thing you want to do is to pay money to have unpleasant and unhealthy fumes escape into the air. Choosing a case made of steel eliminates that potential problem. It's also a tougher material and can stand up to the sometimes active learning in your classroom One Speed Filtration---Some days have more pollutants going in to the air than others, and your cleaner should be able to step up the rate at which it takes them out. The ability to control how fast the air is cleaned with a low, medium, and high filtration option is invaluable. If popcorn burns, someone gets sick or has an accident, or you're doing a particularly smelly art project, or if a lot of your students are coughing, being able to filter the pollutants out of the air faster is a handy and healthy option. No Wheels----You can place your unit in what you think is the perfect spot. But Murphy's Law will usually require you to move it. Having sturdy wheels makes repositioning the unit as easy as a push of the finger. And you can do it without waiting for a janitor or fellow colleague to help. Noisy---With between 20 and 30 students or more in a room, the last thing you need is something that will add to the noise. Instead, choose a cleaner that is quiet enough to be seen and not heard when you need everyone to hear what you're saying. Minimal Cleaning Capacity---Even though classrooms are not usually huge, the number of students dictates that you choose the units cleaning capacity so that you are able to clean at least twice the number of square feet of your room's size. So if your room measures 500 or 600 square feet, a cleaner that cleans 700 square feet would be just fine if you were the only one occupying the room. But with 20 other students, you should look for a cleaner that can clean approximately 1500 square feet. Making sure your unit is placed in the correctly sized space is one of the best ways to insure clean air.
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