11 Humidification apparatus and systems, namely, water spraying apparatus and systems comprised of water spraying nozzles for humidification, water spraying heads for humidification, pipes for humidification apparatus and systems, valves and pumps for humidification apparatus and systems; fog generation apparatus and systems, namely, water misting apparatus comprised of nozzles for fog generation water spraying heads for fog generation, pipes for fog generation apparatus and systems, valves and pumps for fog generation apparatus and systems