We do not recommend vacuuming or washing the Pre-Filter or PECO-Filter for your Molekule air purifiers. Vacuuming or washing can damage the filter and unfiltered air will seek out any tiny holes or gaps in the filter media. Vacuuming can release and re-introduce pollutants back into your air, while washing the filters could potentially cause mold to grow if the filters are not dried fully. Over time the PECO coating gets covered in dust which blocks the light that activates the catalyst and diminishes its effectiveness in destroying pollutants.
The only way to keep your air clean is to replace your filters regularly. For the Molekule Air, we recommend replacing the Pre-Filter every 3 months and the PECO-Filter every 6 months. For the Molekule Air Mini, Air Mini+ and Air Pro, we recommend replacing the PECO-Filter every 6 months.