Disposable light-blue ultra-fine filter
Ultra Fine Filters, from Philips Respironics, are an optional accessory for increased filtration efficiency, for use with all DreamStation CPAP & BiPAP machines.
USAGE: These filters are disposable and should be replaced after 30 nights of use or sooner if they appear dirty. To install an ultra fine filter in your DreamStation, slide the blue foam pollen filter out of the machine, securely snap the light blue ultra fine filter onto the base of the foam pollen filter, and insert them both back into the device. For complete instructions review the documentation that came with your equipment.
The Filter is disposable so you just replace it when it is time to do so. Being housed in a light blue frame the filters main job is to block any dust particle from getting into the machine. For added protection this filter can be used with the reusable filter to further prolong the overall life of each disposable filter. The ultra-fine filter will ensure that the air you are breathing throughout your therapy is dust free as possible. With this filter your CPAP machine is also protected against the dust so it runs longer.
The white filter material is permanently attached to the light blue plastic filter housing. They are not designed to be detached from one another.