What exactly is an air purifier or cleaner?

You probably have heard of air purifiers or cleaners, but what exactly are they and what do they do. A quality Air purifier can help substantially with the air quality in your home or office. Air purifiers are electronic devices that clean the air by eliminating or reducing harmful contaminants in the air. They are especially useful in areas that have pets or cigarette smokers and help to eliminate dust particles, which is a common cause of allergies.

Tips when buying an air purifier.

Do not immediately go for the lowest price air purifier, it may not have the features you need or it may be expensive to maintain.

Do not buy an air purifier simply because it looks good, carefully read the information found on the air purifier box and find the one that works best for your situation.

Check the costs of the replacement filters and the frequency that you have to replace them.

Before you buy one, check for the lowest price online as well as read reviews from long term users and avoid brands that have common problems such as becoming noisy over time.


With air purifiers, you will find many different brands and models. Some air purifiers use filters that can simply be cleaned while others need to be replaced, which can be expensive. Look for air purifiers that use HEPA filters as they are considered the best due to regulations on this type of filter from the Department of Energy.

When to Replace the Filters

A dirty air filter will not allow an air purifier to function at its best ability and therefor should be replaced. Some air purifiers have automatic sensors that will tell you when to replace the filter. If your model does not, try reading the manufacturers suggestions in the original manual that came with the air purifier or search for this information online by the model number. If you already have a replacement filter, it should have this information written on the package in the form of an estimated replacement time frame. For the best results, replace the filters based on these recommendations.

You can also visually inspect the air filter if it is easily removed, if it is severely dirty, replacing the filter should be done. Replacing the air filters regularly is important or else you will not have the full benefits in which you bought the air purifier for.