If the mask is worn daily a filter will last about 5 days. We recommend cleaning the filter every two days (with warm water and soap) so it will last as long as 10 days. Once the filter is uniformly light brown, we recommend switching it with a new one.
All orders are expertly packaged, prepared, and shipped within three to five business days of ordering. We offer worldwide shipping and the typical delivery time frame is between 10-20 business days. Depending on your location, you may receive items much earlier.