HEPA, electrostatic, and ozone are the main types of air filters you can use to comparison shop and get the model with the most useful features combined with a great price for the most cost effective choice. Let’s look at each category.
HEPA often are accompanied by ultraviolet light options, and how effective the latter is at removing mold, germs, and other contaminants is not clear. More research is needed before we know that ultraviolet light is worth paying more to obtain in any of the available models. Regardless of the ultraviolet feature, the HEPA type of air purifier is often the most helpful for those suffering from Asthma or from dust or pet allergies.
Electrostatic precipitators capture large airborne particles using static, which means they’re best at filtering air contaminants like pollen and dust. However, these types are not good at filtering micro contaminants like bacteria and mold. They are less expensive to maintain than HEPA types as they can usually be cleaned.
Ozone: Better or Worse?
Ozone generating air purifiers have received mixed reviews recently. In the past, they were touted as being a healthy and effective air cleaning option. However, in recent months both the EPA and the FTC have scrutinized these claims, and in many cases, pushed manufacturers to change their advertisements as some of the information appears to have been exaggerated. Additionally, those suffering from Asthma, lung diseases, and allergies can experience adverse effects from the ozone produced by this type of air purifier. If you or your family or coworkers have any of those conditions, it is best to steer clear of this type of purifier until more research can be obtained.
Whichever type you choose, take your time and compare models and options. Note as you shop that the HEPA type requires more money over time in the form of replacement filters. Also, consider the location and size of the unit you want to buy. Using a systematic approach to comparison shopping, you’ll be able to find the right model type, size, and function for the best price. Your health will be better for it.