Just in case anyone was interested, Bob Pound of Pro-Products got back to me in response to the question of whether or not PAM would still be safe if the treated cage becomes wet. Here's his response:

Brad,



Once PAM has completely dried on a surface, it is not water soluble, so will remain intact and effective in high humidity enclosures and is not affected by misting. In fact, you can wash the cage with soap and water and there will still be sufficient residual left to continue to kill mites and ticks.



Bob Pound promist@comcast.net

Pro Products www.pro-products.com