An adjustable variable atmospheric condition testing apparatus for testing an object includes an outer chamber, an inner chamber positioned inside and in fluid communication with the outer chamber, a vacuum pump configured to remove gas from the inner and outer chambers, and further configured to expel the removed gas via an exhaust, an intake configured to selectively introduce gas from ambient into the inner chamber via a valve, such that the introduced gas interacts with the object, and a sensor positioned downstream of the object and configured to detect a characteristic of the gas interacting with the object.