Ryland unless your bike gets submerged in water up to your blx you can rest assured that no water will enter your airbox, and not even mud and cakes will get through the flter compound media.

You can remove the filter after throwing cakes at it, wash it under the tap and re-generate the filter with the oil kit.

You are safe. These filters are ok for water spray, but not jet water from the car wash and not when snorkling under water.