The answer to 'which is better air filter or' is that air filters and air purifiers both have their own advantages and the best choice depends on your specific needs and home environment. Air filters are generally less expensive and can effectively capture larger particles like dust, pollen, and pet dander, while air purifiers use more advanced technology like HEPA filters or ionization to remove smaller airborne contaminants like smoke, bacteria, and viruses.
The main factors to consider are the size of your home, the types of pollutants you want to remove, and your budget. Air filters are a good basic option for general air cleaning, while air purifiers provide more comprehensive air purification for those with allergies, asthma, or other respiratory concerns. Many homeowners find that using both an air filter and air purifier provides the most effective whole-home air cleaning.