FilterSpan Ledger

Filters Span Ledger is an air purifier filter element manager. After registering each purifier, room, and filter element locally, the application will estimate a replacement window that is closer to actual use based on the installation date, rated lifespan, and the operating time you have recorded. You can record the pre filter HEPA、 Take photos of multi-layer filters such as activated carbon, record procurement costs, write inspection notes, and see at a glance which filters have expired and which ones can still be used for a few more weeks from the dashboard and expiration list before they expire. Suitable for household users who need to carefully manage the filter replacement cycle, avoid expired use or premature waste.