These are replacement filters for the ResMed S8, S8 II, and C-Series Tango CPAP devices that look like this.
They are available in generic versions or the ResMed brand for customers that prefer OEM filters. The Generic brand filters are replacement filters of equal quality to the OEM versions. The Generic standard filters are available in packs of two with quantity discounts when ordering packages of 6 or 20. The packages of six will ship as 3 packs of two and the package of 20 will ship as 10 packs of two. The Generic hypoallergenic filters are available in packs of three with quantity discounts when ordering packages of 6 or 21. The packages of six will ship as 2 packs of three and the package of 21 will ship as 7 packs of three.
The Standard filters are a two stage blue and white mesh. The Hypoallergenic flters have an additional ultra-fine filter attached to the rear of the blue and white mesh as pictured above.
When these filters are installed correctly the blue mesh should be facing out. These filters should be replaced monthly under normal conditions.
Note: Due to manufacturer restrictions we can only ship the OEM filters to USA addresses.