Yay! You know with the constant change in the weather in Chicago this year and everyone having the sniffles, it may be a good idea to make sure to change your air filters regularly. It is wise to also check your filter to make sure that they are either 30 day filters or if they are seasonal filters. Some filters only need to be change every three months. So if you have allergies and have been sneezing a lot more than normal, before you run to Walgreen’s to stock up on the Wal-itin or Claritin, try changing out your filters first.