Remember the Filter

Track filters at home or across your buildings, get reminded before each is due, see how local air quality affects them, and reorder your exact size in a tap.

Never forget a filter change again — at home or across a portfolio of buildings — and finally understand what your filters are up against.

Remember the Filter tracks every furnace, AC, and refrigerator filter, reminds you before each one is due, and shows you your local air quality so you know when a filter is working hardest. Whether it's one furnace or a fleet of rooftop units, your exact replacement is one tap away.

ADD A FILTER IN SECONDS • Pick your size on simple wheels (W × H × D) and choose your MERV with a visual selector — no typing part numbers. • Name filters however you like ("Upstairs return," "RTU-4") when you track several. • Refrigerator filters too — by brand and model.

REMINDERS THAT ACTUALLY FIT • Set any schedule — days, weeks, or months. • A transparent "smart schedule" suggests when to check each filter, based on your filter type, your home (pets, smoking, how many people), the season, and how the filter has actually looked at past changes. Every factor is shown in plain language — an honest estimate, never a hidden guess. • Tell us how the old filter looked when you swap it, and the schedule learns.

LOCAL AIR QUALITY, TIED TO YOUR FILTER • See your live AQI, the pollutant breakdown, pollen levels, and a multi-day forecast. • We're honest about what a filter can and can't do: it captures airborne particulates like PM2.5, PM10, smoke, and pollen — not gases like ozone, NO₂, or CO. We tell you which is which, every time. • On smoky or high-pollen days, the app estimates the extra load on your filter and can move your reminder in — so you check it before it's overdue. • We never tell you to "size up" your MERV. A denser filter can strain an older system; we only ever suggest checking or replacing the same filter.

FOR YOUR HOME • Every filter on one screen, most-due first, organized by room. • A lifespan gauge and countdown to the next change; log a note or photo each time.

FOR YOUR BUSINESS • Track filters across properties, units, and systems — with a portfolio dashboard, a "due this week" rounds list, and search to jump to any filter fast. • Quick-add filters as you walk a building, no drilling required. • A portfolio pull list rolls up every size with quantities and where they go — reorder in bulk or share it to load the truck. • Scan a unit's nameplate to read the make, model, and serial on device; print QR labels; keep photo proof-of-service, change history, and CSV audit export.

REORDER YOUR EXACT SIZE • One tap opens your size at the Remember the Filter store — standard and hard-to-find custom sizes (built to the ⅛ inch). • A rolled-up shopping list totals every size you track.

PRIVATE BY DESIGN • No account, no login, no ads, no subscription. • Your data lives on your device, with export/restore so a new or lost phone never loses a thing. Air quality uses a ZIP you enter — never your device's location.

Free forever. Set it up once, and never think about a filter change again.