After being heated by the heating tube, the air isevenly blown to the middle of the oven through thehigh efficiency filter to ensure that the product isdried under the condition of dust-free and constant temperature.The physical explosion-proof door isdesigned on the back, so that when the air pressurein the furnace is suddenly too high, it can play a moderating role to achieve safety. The top air inletand air outlet can discharge the humid gas generated inside to ensure that the air in the furnace is dry.