Kanohi

Kanohi are power-imbued masks worn by bio-mechanical beings. Kanohi masks come in many shapes and elements, and have varying Powers and levels of power. They are forged using molten Protodermis, or the remains of Kanoka. Many beings, including the Matoran, will die or go into a coma if their masks are kept off for too long.

List of Kanohi by Users
Note: some Masks fall under multiple categories, but are listed under whom they are most identified with.

Toa Mata

 * Hau
 * Kaukau
 * Miru
 * Kakama
 * Akaku
 * Pakari

Toa Metru/Toa Hordika

 * Huna
 * Rau
 * Mahiki
 * Komau
 * Ruru
 * Matatu

Toa Inika

 * Calix
 * Elda
 * Suletu
 * Sanok
 * Kadin
 * Iden

Toa Mahri

 * Tryna
 * Mask of Stealth
 * Mask of Kindred
 * Mask of Sonar
 * Mask of Summoning
 * Mask of Gravity

Others

 * Avohkii
 * Kraahkan
 * Rua
 * Aki
 * Rode
 * Olmak
 * Kualsi
 * Pekhui
 * Kiril
 * Mask of Alternate Futures
 * Mask of Creation

No Permanent Users

 * Ignika
 * Vahi

Great Kanohi
Great Kanohi are worn by Toa and many other powerful beings, such as Makuta, Karzahni, and members of the Order of Mata Nui

Noble Kanohi
Noble Kanohi are less powerful versions of Great Kanohi. In addition to Toa, Turaga also wear these masks.

Powerless Kanohi
Basic Kanohi with no special powers. Matoran must wear them or else they slowly get weaker, and eventually die. Umbra wears a powerless mask in the shape of a Ruru.

Golden Kanohi
When the Toa Mata collected 6 Great Masks, they could exchange them for a Golden Kanohi. After they defeated the Bahrag, the Toa Mata lost their Golden Kanohi in exchange for Kanohi Nuva

These special Kanohi had the powers of the Hau, Akaku, Miru, Pakari, Kakama, and Kaukau.

Other golden Kanohi do exist, but they are Kanohi belonging to other classes, just colored gold, such as Lhikan's or Brutaka's.

Silver Kanohi
Kanohi that are not being worn or are drained of thier power. They have also been described as being dull gray.

Copper Masks of Victory
These powerless Kanohi are awarded to matoran as trophies during sports tournaments. Takua and Onepu were known to possess them.

Infected Kanohi
Infected Kanohi are Kanohi that have been infected by kraata. They appear rusted and old, and the wearer is controlled by Makuta.

Kanohi Nuva
Kanohi that have been collected by the Toa Nuva. They grant the wearer to share it's powers with others nearby.

Hordika Kanohi
When the Toa Metru became Toa Hordika their Kanohi became stuck to their faces and lost their powers. However, Toa Nuju was still able to use the eyepiece he had built in to his original mask.

Organic Kanohi
When the Toa Inika came to Voya Nui, their Kanohi were changed by the lightning. They were organic and sentient, so they helped the Toa Inika learn their powers.

Legendary Kanohi
These Kanohi are very powerful, and sought by many beings. The Kanohi Ignika and the Kanohi Vahi are Legendary.