Oil for Ramair Filter

I've been using an aftermarket cleaner and spray oil on my Ramair for several years now also.... No deterioration of the foam.
What is the name of cleaner& spray oil you use, was thinking of using Dawn dish washing soap to clean, but question what oil to use. Like the idea of a spray. Thanks
 
I douse the filter with Spray Nine degreaser then wash the filter in a bucket of warm water mixed with Dawn dish soap. Rinse with water and let dry. I have used the PJ1 oil degreaser for cleaning but prefer the soap method. For the oil spray, I also use PJ1 like @Bedifferent.
 
Thanks