Central air filtering method and apparatus
Central dehumidification (tandem) system
Central desk air conditioning control system
Central steam humidifier
Centrifugal humidifier
Centrifugal humidifier with sawtooth ridged impingement surface
Centrifugal separation of liquid from gas
Centrifugal separator for dissociating industrial gases
Chemical dehumidification system which utilizes a...
Chemical upgrading of filters
Chimney cap
Chimney closure apparatus
Chute humidificatrice
Circular diffuser for ventilating systems
Circulating cooling system
Cladding for air handling unit access panels
Clean air zone
Clean air zone for surgical purposes
Clean room
Clean room air filter system with self-supporting filter units