Filter-change indicator

App-based maintenance reminders for filters help keep performance consistent, with clear prompts on when to replace. Filters still require planned replenishment since they aren’t washable.

A built-in filter-change reminder (time strip) is noted as helpful for yearly replacement, reducing guesswork about when to swap the exhaust filter.

The display-based reminders and alerts for filter cleaning are frequently cited as helpful for staying on top of upkeep and maintaining performance.

Filter-clean/change alerts are cited as useful for keeping performance consistent. Combined with washable filters, reminders can make routine upkeep more predictable.

Filter-change indicators/strips appear on some models, helping owners know when to replace exhaust/HEPA filters. Other reviews rely on time-based guidance (roughly annual), so indicator availability depends on the specific C3 variant.

Multiple reviews note that the LCD interface includes maintenance messaging, such as notifying the user when the filter needs attention (washing/replacement guidance varies by source and phrasing).

The app's consumable tracking for filters/brushes is useful and helps plan upkeep, with reminders tied to estimated wear life rather than a simple calendar.

The app commonly tracks remaining life for brushes and filters and prompts replacements, making consumable maintenance easier.

The app can track accessory life, including filter and brush runtime, helping prompt cleaning or replacement.

The app provides maintenance tracking for parts like the filter (remaining life and reminders). Reviewers note you may need to reset timers after cleaning to keep reminders accurate.

Maintenance alerts for the filter are appreciated, including prompts to wash or service filters during ownership.

The screen-based filter prompts and alerts are called out as helpful, including warnings when the filter is not seated correctly. This reduces guesswork and supports regular maintenance habits.

At least one review highlights indicator lights that alert you to blockages and a dirty filter, helping prompt maintenance before suction drops.

The app commonly includes usage-based maintenance timers/reminders for parts like filters and brushes. This helps schedule cleaning/replacement, though it appears more timer-based than sensor-based in most descriptions.

Several reviews note filter status or maintenance reminders surfaced via the display or the companion app, helping users stay on top of cleaning and replacements.