Design and application of water gun for pre-cleaning exposure footwear and helmet

Abstract

Abstract The hard equipment of exposure footwear and helmet should be cleaned thoroughly to keep firefighter’s healthy. To balance the relationship between effective removing of contamination and equipment’s well preserved, new water gun with suitable air pressure was studied. Firstly, the water gun containing flow stabilizer part, venturi part and jet-flow part was designed for pre-cleaning step. Secondly, the contaminating and cleaning experiments were carried out by introducing new water gun. Thirdly, the result data was analyzed using histogram graph and the conclusions were obtained. This new water gun for pre-cleaning could remove contamination like mud effectively avoiding any damage. Further study should focus on removing the hard equipment’s oil stain in the washing step.