Spray device

An apparatus, comprising:

• a housing, the housing defining an outer surface and an inner surface opposite the outer surface, the inner surface defining an inner chamber, and the housing defining a longitudinal axis extending through the inner chamber, wherein:
• the housing defines an entry passage intersected by the longitudinal axis, the entry passage extending from the outer surface to the inner surface,
• the housing supports a one or more fluid channels, each fluid channel defining a spray outlet which opens into the inner chamber, and each spray outlet configured to provide a spray of a fluid into the inner chamber when the one or more fluid channels receives the fluid,
• the housing supports a magnification pane configured to provide visual access through the housing and into the inner chamber,
• the housing supports the magnification pane to cause a field of view of the magnification pane to encompass a portion of the inner chamber through which the longitudinal axis extends, and
• the magnification pane defines an optical axis substantially perpendicular to the longitudinal axis;
• and
• a fitting defining a fluid chamber configured to hold the fluid, wherein the fluid chamber is configured to provide the fluid to the one or more fluid channels.

A method, comprising:

• providing, using a fitting defining a fluid chamber, a fluid to a one or more fluid channels supported by a housing;
• providing, using the one or more fluid channels, at least one spray of a fluid into an inner chamber defined by an inner surface of the housing, wherein the housing defines a longitudinal axis extending through the inner chamber, wherein the housing defines an entry passage opening into the inner chamber and intersected by the longitudinal axis, and wherein the entry passage extends between the inner surface and an outer surface defined by the housing and opposite the inner surface;
• and
• providing, using a magnification pane supported by the housing, visual access through the housing and into the inner chamber.