Abstract: An air purifier comprises a housing that comprises an intake opening for an inflow of air and an output opening for an outflow of air, a fan, a motor for rotating the fan, a sleeve configured to at least partially surround the fan and/or the motor, an air purifier unit, and a retainer assembly. The air purifier unit is mounted in the housing purifying air flowing through the housing and is operatively coupled to the sleeve. The retainer assembly is configured to retain the air purifier unit in the housing and with respect to the sleeve. The retainer assembly comprises a retainer and an actuator operatively associated with the retainer and the sleeve, wherein movement of the actuator from a first position to a second position moves the retainer to securely retain the air purifier unit in the housing.

Abstract: A rail system for a workspace. The system may include at least one mounting mechanism and an elongated rail. Each mounting mechanism is configured for attachment to the rail and configured for attachment to an edge of, or a surface of, a table or desk, so that the mounting mechanism(s) support the rail relative to said surface. The elongated rail is configured to extend horizontally relative to and above the surface of the table or desk. The elongated rail has at least a front surface, a bottom surface/edge, and a back surface, as well as mounting slots. In some instances, a channel (or trough) is defined between the front and back surfaces, which extends between first and second ends of the elongated rail. The rail accommodates placement of electrical cords to/from a power source, for mounting components (e.g., clamps, brackets, release mechanisms) and/or for connecting accessories thereto.

Abstract: A process for the preparation of nitric acid from nitrogen oxides, oxygen and water which utilizes an aqueous stripping liquid having a nitric acid content within a specified range which passes through a reaction zone. By controlling the process parameters within specified ranges three regions are provided with the reaction zone.

Abstract: DISCLOSED IS A TWO STAGE process AND APPARATUS for preparation of NITRIC AICD characterized by efficient use of heat liberated by the conversion of NITROGEN OXIDES TO NITRIC ACID.