I-shaped duct system
Impeller exhaust ridge vent
Impeller humidifier with integrally formed overflow tube
Improved air conditioning system
Improved air curtain vestibule
Improved airflow regulator
Improved duct joiner and method of manufacture
Improved flow regulator
Improved grille assembly and related method
Improved self-contained air drying unit
Improved supply air register construction
Improved vent for enclosures
Improvement(s) related to particle monitors and method(s)...
Improvements in or relating to temporary closures for a room...
Improvements to devices controlling and regulating an air flow
Improvements to devices distributing and automatically...
In-line access door
Inactivating device for virus, bacteria, etc. and air...
Incinerator and method of treating refuse
Independent heat exchange unit between primary and secondary...