What should I do to prepare my air purifier for storage longer than 30 days?
Remove the True HEPA filters from the unit and wrap them in an airtight plastic bag. Also remove the Odor Reducing Pre-Filter and place it in an airtight plastic bag. This will help preserve the filters during extended storage.
From the official Honeywell HPA090 Air Purifier manual, page 4
Have a follow-up question?
Answers from the official manual.
Common questions