I am an engineer and I often use the Dust chamber IP Class Sand and Dust Proof Test Chamber Suitable for Indoor Low Concentration Dust Pollution Test Sand and Dust IP Class Test Chamber is designed according to GB4706, GB2423, GB7000.1, IEC60529, ect standards and meet the IPX5 and IPX6 dust test requirements. Sand and Dust IP Class Test Chamberis mainly used for testing control cabinet, household appliances, low voltage electric appliance, automobile, lamps and lanterns, motorcycle parts,ect outer shells. Test chamber pressure can be constant and changed, suitable for indoor low concentration dust pollution test, assess corrosion degree ofsample in such sealing environment.