The GoodKnight 420/ 425 Pollen Foam Filters are used with the GoodKnight models that were manufactured by Puritan Bennett.
The filters can be used with the following models:
GoodKnight 420G
GoodKnight 420S
GoodKnight 420SP
GoodKnight 420E
GoodKnight 425
The filters are recommended to be replaced every 3 months, but to be cleaned every month! When using with a ultra fine filter, place the ultra fine filter in first and then the foam filter.
Dear Alex....I again wanted to thank you for all your help with this cord and wanted to say sorry for all the confusion...I hate that it has been such a big headache and caused you extra work. I appreciate your patience with me. Thanks again, Lisa Campbell
Lisa Campbell
I ordered a 30 watt power supply for my Resmed S9 as I am traveling and don t want to pack the large heavy 90 watt power supply or the humidifier that came with the S9 while travelling. The order was here on the west coast within the week and it works great!! The size and weight of my suit case also thanks you!! Thank you CPAP Clinic for the great product and excellent service!
Dave Cobble Hill BC
Great service
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