Noble Kanohi were Kanohi Masks of Power with a significant amount of power, though less than that of Great Kanohi. They were made from Kanoka disks of power level 7.2, 1 They were commonly worn by Turaga and used by Toa. Noble Masks were stored in the Great Temple of Metru Nui.1
Notes
Noble Masks did not possess as much energy as the Great Masks of Power, but they too were vital to the Toa's quest to free Mata Nui. The Noble Masks could be worn by both the Toa and Turaga, and each Toa had to collect six Noble Masks in his or her own color.3
Noble Masks of Power could be worn by either Toa or Turaga. They were often used by Turaga. They had less energy than the Great Masks. On Mata Nui, there were a total of 36 Noble Masks, which the Toa collected and returned to their villages.4
Noble Masks of Power were made from Kanoka disks of power level 7.5
The Toa Nuva were able to use Noble Masks, but they were far less powerful than the Kanohi Nuva.6
The Toa Mata only needed to collect the Great Masks to get the golden Kanohi. However, they did come across Noble Masks in their adventures and returned them to the koro for the Turaga to use. Collecting the six Noble Masks was part of the Toa's quest, but they did not need them to get the golden Kanohi, which only contained the powers of the six Great Masks. The Turaga used the Noble Masks to help defend their villages. The importance of the Toa's collecting the Noble Masks was not so much to use their powers, but rather to return them to the Turaga so they could use them to help defend the villages. The Toa certainly used the Noble Masks on occasion, but the Noble Masks had so much less power in comparison to the Great Masks that the Toa were less likely to use them.7, 8 Even though the Noble Masks had different powers from the Great Masks, they did not have the same strength, range, or duration that Great Mask powers had.9
If a Matoran wearing a Noble Mask (such as Jaller) became a Toa, their mask would still become a Great version of that mask.10
Noble masks would likely change to match the color of a Toa if worn by one.11