Carbon Air filters are another choice for an air filter. They are very helpful in removing chemical free. They are helpful for asmatic people as they clear the air of chemical pollutants on furniture and other floating perfumes. This can be especially helpful for people with allergies. The downside to this type of air filter is they do have a lower efficiency in taking away airborne particles.
UV Home air purifier is wonderful at killing bacteria and viruses. They are not a stand alone air purifier. They are usually used together with a HEPA filter. UV convert the air into safer more breathable air. A good overall choice when combined with an appropriate HEPA filter.
Negative Ion utilize the chemical process to clean the air in the surrounding home. The paricales are negatively and positively charged to combine for air filter action. The negative Ion Air purifier is not as effective as others on the market. The process although complicated from a chemical standpoint lacks in many areas.
Ozone Air purifiers produces Ozone and releases it into the air. The health professionals are not always in agreement with this type of technology. There have been questions raised whether the ozone would amplify asthma symptoms by releasing ozone in the air. There have been studies where ozone inhibits some growth however the questions are raised on whether it is a good thing or not.
Choosing an air purifier is an individual choice. It should be one that one takes considerable time to research. The many health benefits are no doubt a strong reason to take the time and get an air purifier. They come in all shapes and sizes. They all are unique on what they can offer the individual. The health benefit in the long run will far outweigh the effort you put into researching the best one.