How should I store the air purifier if it won't be used for more than 30 days?

Remove the HEPA filters from the unit and wrap them in an airtight plastic bag, and also remove the Odor Reducing Pre-filter and place it in an airtight plastic bag. It is also recommended that you clean the air purifier with a dry cloth before extended storage, and never use water, wax polish, or any chemical solution on external surfaces. (Page 6)