Portable room humidifier
Portable ventilating system
Protective cover for a heat register
Pulse air jet generator
Radial flow diffuser
Register and method of assembly
Register assembly for covering an air duct opening
Register assembly for covering an air duct opening
Register assembly for covering an air duct opening
Register assembly with adjustable faceplate connectors
Register with multiple controls
Room air conditioning method and an air-conditioned ceiling...
Rotatable air vent
Safety lock
Scent dispenser
Self opening flexible protective covering for heat registers
Supply air terminal
Support bridges for air diffusers including spring loading...
System for distributing air through a ceiling in a room
System for filtering and scenting of the air of individual...