Dust&Sand Test Chamber Temperature and humidity are not the only environmental conditions that products need to be tested to. Climatetester has developed advance designs to realize testing for additional conditions that products may be affected by. Dust testing is one of such designs.  Dust Chamber Sounds simple enough, just build a cabinet that creates a continuous environment of dust. However, there are many details to consider.   The floor of the chamber is an inverse pyramid. At the tip of the cone, an air nozzle lets in compressed air. The cone is filled with dust. A wire shelf above the floor holds the part under test. A window and rubber gloves thru the door allow the parts to be turned to ensure even exposure without opening the door. Special considerations were made to ensure that the dust is continuously dispersed and not accumulating on the floor. The compressed air is dried to keep the dust from clumping. And a special clamshell type door is used for easy loading.