Air purifiers are a great way to keep your home clean and healthy, but it can be difficult to decide which type is best for your needs. Ionizers and HEPA filters are two of the most popular air purification technologies, and each has its own advantages and disadvantages. Ionizers are a great low-cost solution for general air cleaning, especially if viruses and volatile organic compounds are cause for concern. However, for those who have respiratory problems or allergies, a HEPA purifier will provide maximum effectiveness.
Air purifiers are more expensive than ionizers, and the filter needs to be replaced twice a year. Objectively, HEPA air purifiers clean the air better and trap polluting particles than ionic air purifiers. They don't emit ozone and don't cause particles to fall and stay in your home until they clean. An air purifier is often a better choice than an air ionizer, especially if you have allergies.
In most cases, it's better to buy an air purifier because there's a greater variety available in a wider range of prices. There is also no chance of ozone being produced when using an air purifier. However, if you have a larger space with odor problems, an air ionizer might be a better option. The first and main difference between ionic air purifiers and HEPA air purifiers is the technology used to clean the indoor air.
The Environmental Protection Agency (EPA) states that air purifiers with high-efficiency particulate air (HEPA) filters can hypothetically remove at least 99.97% of airborne particles with a size of 0.3 microns, including dust, pollen, mold and bacteria. Air ionizers perform a similar task, except that they purify room air by creating negative ions that adhere to allergens, which are positively charged and help impurities settle on the floor. Ionizers take advantage of the chemical properties of ions to eliminate particles and microbes from air. Some models have oppositely charged plates to attract these particles when they pass through the ionizing air purifier.
While air purifiers remove particles from circulation by trapping them, ionizers simply make them heavy enough to fall to the floor, meaning they still need to be cleaned and can be easily altered and reintroduced back into the air. Air ionizers use negatively charged ions that transfer their charges to air polluting particles present in the environment, causing them to stick together and eventually fall to the floor. When it comes to choosing between an ionizer or HEPA filter for your home's air purification needs, it's important to consider your specific needs and budget. If you're looking for a low-cost solution for general air cleaning, an ionizer may be the best choice for you. However, if you suffer from allergies or respiratory problems, then a HEPA filter is likely your best bet for maximum effectiveness.