A coating system comprising: a gas enclosure (100, 1000) defining an interior, wherein a controlled environment is maintained in the interior; a transfer module configured to receive a substrate from an environment different from the controller environment of the gas enclosure and to transfer the substrate into the gas enclosure; a coating apparatus housed within the interior of the gas enclosure, the coating apparatus comprising: a coating assembly configured to deposit an organic material on the substrate; a substrate support system configured to establish a gas cushior between the substrate and the substrate support apparatus, in order uniformly to support the substrate during deposition of the organic material on the substrate, the gas cushion to be established using a combination of a pressurized gas region and at least a partial vacuum region; a motion system configured to control a relative position of the coating assembly and the substrate, when supported by the substrate support system, so as to enable the coating assembly to deposit the organic material in a pattern on the substrate; and a line scan camera coupled to a component of the motion system to capture images of particles on the substrate; an enclosed curing module configured to receive the substrate from the gas enclosure, via the transfer module, and to treat the deposited organic material on the substrate to provide an organic film layer; a gas circulation and filtration system in, or selectively placeable in, flow communication with the interior defined by the gas enclosure; and a gas purification system in, or selectively placeable in, flow communication with the interior defined by the gas enclosure. a gas enclosure (100, 1000) defining an interior, wherein a controlled environment is maintained in the interior; a transfer module configured to receive a substrate from an environment different from the controller environment of the gas enclosure and to transfer the substrate into the gas enclosure; a coating apparatus housed within the interior of the gas enclosure, the coating apparatus comprising: a coating assembly configured to deposit an organic material on the substrate; a substrate support system configured to establish a gas cushior between the substrate and the substrate support apparatus, in order uniformly to support the substrate during deposition of the organic material on the substrate, the gas cushion to be established using a combination of a pressurized gas region and at least a partial vacuum region; a motion system configured to control a relative position of the coating assembly and the substrate, when supported by the substrate support system, so as to enable the coating assembly to deposit the organic material in a pattern on the substrate; and a line scan camera coupled to a component of the motion system to capture images of particles on the substrate; a coating assembly configured to deposit an organic material on the substrate; a substrate support system configured to establish a gas cushior between the substrate and the substrate support apparatus, in order uniformly to support the substrate during deposition of the organic material on the substrate, the gas cushion to be established using a combination of a pressurized gas region and at least a partial vacuum region; a motion system configured to control a relative position of the coating assembly and the substrate, when supported by the substrate support system, so as to enable the coating assembly to deposit the organic material in a pattern on the substrate; and a line scan camera coupled to a component of the motion system to capture images of particles on the substrate; an enclosed curing module configured to receive the substrate from the gas enclosure, via the transfer module, and to treat the deposited organic material on the substrate to provide an organic film layer; a gas circulation and filtration system in, or selectively placeable in, flow communication with the interior defined by the gas enclosure; and a gas purification system in, or selectively placeable in, flow communication with the interior defined by the gas enclosure.