Let us discuss why a shower or a rain simulator booth is required? Shower tester booths are mainly required to test for water leakage inside a vehicle or to test water will enter into areas where its not supposed to enter. This is usually done after assembly of a vehicle. This is usually done to test the efficiency of assembly of a particular vehicle. So a shower tester booth is usually installed in factories followed by an air blow zone. This Air Blow zone is to dry off any excess water on the vehicle. The applications that need a shower tester booth are cars, buses , trucks, rail coaches, locomotives, metro bogies, two wheeler bikes, construction machinery, small aircraft etc.