RoscoePhilips respironics DreamStation Reusable Pollen Filter, (3) - Product Features
- Pollen Filter is compatible to all DS CPAP machines.
- are meant to be used for DS CPAP Machine in conjunction with the Ultrafine Filters
- blocks big dusts from the CPAP motor so your CPAP machine lasts longer
- filter is very solid. If maintained well, it can last 1-2 years.