These white ultra fine fiber filters (with integrated carrier as shown) are designed for use with all DreamStation Series CPAP/BiPAP Machines. They are an optional accessory used to improve overall air filtration on DreamStation machines. Ultra Fine filters are disposable and should be changed regularly when soiled.
Dimensions: Approximately 2.25 inches long by 0.90 inches wide in an irregular trapezoid shape.
Usage Information: In use this filter snaps onto the base of the DreamStation's foam pollen filter (sold elsewhere on this site). The plastic carrier is permanently attached to the filter. It should not be detached.