Filter Lifespan Calculator

Use this calculator to estimate the lifespan of your AirFanta 5Pro/3Pro’s filters, so you can roughly gauge when you need to replace them.

Please take note of the following caveats before using the calculator:

1. This calculator is only able to provide an estimate according to the PM2.5 level of your room when the air purifier is in active use.
2. Turn on your room air purifier and leave it running at the usual speed for a few hours (ideally at least 2 to 3 hours) before checking the PM2.5 value. For AirFanta 5Pro, you can refer to the reading from the on-device AI PM2.5 Sensor, and for AirFanta 3Pro, you can use an air quality monitor, such as AirFanta G3 (coming soon, sold separately) to measure the PM2.5.
3. This calculator does not take into account the filtration of gases, odors, or VOCs by the activated carbon and/or Formaldehyde Killer component of a filter (if present). Only particulate matter (such as PM2.5, dust, pollen, smoke, allergens, viruses, etc) filtered by the High Efficiency component of the filter will be taken into account.
4. The actual lifespan of your filters may differ from the estimates provided from this calculator, so please only use it as a rough gauge.
5. When in doubt, please replace the filters according to the manufacturer’s recommendations.

Looking for a high performance room air purifier at an affordable price? Check out AirFanta’s room air purifiers below, or learn more here.