When I use them I remove the water bowls as the pesticide has a strong affinity for water, I hang up the strip, and I close the door. After 24 hours I open the door, put the strip into an airtight container and store it in the garage, air out the room, and put the water bowls back.
Repeat weekly for eight weeks along with your other mite treatments such as treating the enclosures and paper substrate with permethrin solution, wiping the snakes with Reptile Spray, etc.