Free tool

Never forget to change your filter

Enter your filter size and how often you change it. We'll email you when it's time — and alert you when AirFilterVault is ready to ship so you can order in one click.

Found on the cardboard edge of your current filter

No spam. One email when it's time. Unsubscribe any time.

Why bother with a reminder?

Filters are the #1 forgotten maintenance item
Most Americans change their filter less than once a year. The recommended interval is every 90 days.
A clogged filter costs real money
An overdue filter increases energy bills 10–15% and can shorten your HVAC system's lifespan by years.
One email, zero effort
We send a single email when it's time. No apps to install, no account to manage.