air devices

Some models also contain compressed air devices that create a vacuum and powerful sucking action on flushing.

"Recent air devices can clean particles and gases from the air, but the question is, does that benefit health, and can you clean enough?"

In 1972, the company officially closed its doors, and sold the remainder of their lines to Eastern Air Devices based in Dover NH (Now known as Electrocraft).

ISO 14644-4 specifies requirements for the design and construction of cleanroom and clean air devices, as well as requirements for start-up and qualification, but does not prescribe specific technological nor contractual means to meet the requirements.

The town was chosen "because it had mining, hydrological, metallurgical, propulsion, and testing equipment as well as fire, water and air devices, and pendulum-action drainage devices which did not exist in other mining locations," in other words because of its tajchy.