we bought 5 acres of vacant land. Perc is complete. There is water utility. 

Water utility runs under right of way to access my property or at least right beside of the edge of it. right of way is apt 20' wide. Sho...

Yes... we do not change light bulbs, air filters, and other items.

You’ve gotten a great response from Alan already, and honestly, I’d say a lot of the same things.Since you’re going into the Air Force, take advantage of the benefits you have right now.

It can also be a combination of factors, like issue always being there, but not as noticeable with colder AC air.

You could also add an ERV (but that gets pricey) to bring in outside air to that unit as well.

Quote from @Jason Moore: Active duty Air Force member transitioning to a new life after 23 years of service.

Tampa, FL - several major hospitals, MacDill Air Force Base, professional sports and universities and colleges.

Quote from @Chris Watson: Well, I am not @Michael Baum and pale in comparison to his deals of the day, but this is one all RE owners can use12 Pack of MERV 8 Air Filters is $39.90 ($37.80 for military & veterans)  https://www.homedepot.com/p/HDX-12-in-x-12-in-x-1-in-Standar...Sizes available: 12x12, 12x20, 12x24, 14x14, 14x20, 14x24, 14x25, 16x20, 16x25, 20x20, & 20x25This is a year's supply. 

Things are kind of left in the air until I circle back.

So we custom built a solution within air table to help us with this as we have an internal project manager on our team.