The answer to 'should I get air filter or' is that it depends on your specific HVAC system and needs. Air filters and air purifiers both have their benefits, and the best choice for your home will depend on factors like the size of your home, the type of HVAC system you have, and any indoor air quality concerns you may have.
Air filters are designed to remove dust, pollen, and other airborne particles from the air circulating through your HVAC system. They come in a variety of sizes and efficiency ratings, with higher-rated filters able to capture smaller particles. Air purifiers, on the other hand, use advanced technologies like HEPA filtration or UV light to actively clean the air in a room or your entire home. They can be more effective at removing certain pollutants, but may also be more expensive to purchase and operate.