Be sure to change out your air filter monthly (or on whatever schedule the filter maker recommends). It’s a cheap and easy way to keep the cool air in your home flowing smoothly — and if you’re bothered by dust, dander, and allergens in the air, a good filter can help keep them from circulating.
It isn’t a bad idea to call your local HVAC professional to inspect your A/C unit before summer kicks off. A good cleaning may be all it takes to perform at its best all summer long, but it’s also a good time to replace or repair any worn components before they have a chance to break. However, only a professional will know what your unit needs