Whats the best way to clean DNA filter

[dazza]

Just done this and asked myself the same questions then thought,  Foc it,  just use a traffic film remover,  any detergent would of done the trick. I rinsed it out with clean water from the hose and dried it with a hair dryer.  As for oil,  well it's only got to catch particles of dust so I found some fork oil and used an oil can with a brush attachment to spread it evenly. Did the trick a treat.