Just like with everything in life, your storm shelter needs your attention. You want it to be as safe as possible for you and your family in the case of an emergency. You need to check all the components at least once a month. I want to ensure they are in working order and the metal is not rusting.  People tend to forget one part of maintenance - bugs want to get inside more than the wind does. Using a safe bug repellent like peppermint oil will prevent an overnight infestation.