Air stream sampling device.

摘要

A device for drawing a small representative sample of air from a laminar flow air stream, such as that flowing through a clean room, is provided, which comprises an array of evenly-spaced tubes (2) having regularly spaced orifices (4) to sample representatively a laminar flow stream of air to determine the number of particles therein. The array of tubes is sized and configured to leave the laminar flow of the air stream substantially undisturbed.