Air filters are made to keep the AC evaporator clean.
A dirty air conditioner evaporator can lead to odors and germs.
The best type of air filter to deal with odors and smells is an activated charcoal air filter. These air filters are treated with chemicals and heat which help with odor control. Activated charcoal filters are extremely effective because they are porous. Many gases can be absorbed with a charcoal filter such as nitrogen oxide and carbon monoxide. Both of these gases can contain serious health hazards. Activated charcoal air filters can also be fitted with an antibacterial material. This material prevents harmful bacteria and viruses from entering your home. My wife and I have six dogs in our home. Three of them are larger dogs that shed frequently, but the other three are tiny chihuahuas. The house constantly smells like a farm, even when we do our best to wash each one of the dogs twice a week. One way we found to help with the order and smells is to buy an air filter with activated charcoal. The air filter removes 99.99% of all odors, smells, and germs in the house. Even though the air filters made with charcoal are a bit more expensive, my wife and I both feel that they work much better than any other product on the market. If you have an issue with odors in your home, then a charcoal air filter might be the answer to all of your problems. Pick up a single one at the hardware store and try it out.