Purify Chamber

The Purify Chamber (Japanese: リライブホール Relive Hall) is a machine located in the Pokémon HQ Lab, developed by Michael's father and Professor Krane to make purification of Shadow Pokémon faster just in case Cipher would ever return to Orre after the events of Pokémon Colosseum. It is a technological alternative to the mystical power of the Relic Stone.
The Purify Chamber can be accessed via PC or at the HQ Lab; the main difference is that the HQ Lab includes a holographic display of the Pokémon stored in the chamber, and the final purification step can only be performed directly at the HQ Lab.
Mechanics
The Purify Chambers works by slowly opening up a Shadow Pokémon's heart over time. This is accomplished through a system of Sets, each consisting of up to four non-Shadow Pokémon arranged around a central Shadow Pokémon. A Set's tempo and flow influence the rate at which purification occurs.
Flow
Flow (Japanese: パッション Passion) is determined by the interaction of weaknesses and resistances of the types of adjacent Pokémon inside of the Purify Chamber, moving clockwise. A type that is super effective against the next Pokémon's type results in strong flow; neutral damage is weaker, resisted damage is even weaker, and immunity results in the weakest flow. For the purposes of the Purify Chamber, the Normal type is treated as super effective against itself, and immunities are treated as resistances. Weaknesses are also prioritized over resistances, meaning that dual type Pokémon who have one type weak to while the other resists the opponent’s type (resulting in neutral damage) would be treated as weak to the opponent.
A full Set of four Pokémon with no overlapping types will generate the strongest possible flow. Additional bonuses apply when multiple Sets meet this condition: one small bar is added for each such Set. If all nine Sets are composed this way and feature Pokémon whose types form effective chains (e.g. Shadow Zapdos, Poliwrath, Nosepass, Flareon, and Chikorita), all Sets will reach maximum flow with filled gauges. However, removing a Pokémon reduces flow across all Sets by one small bar. If a Shadow Pokémon shares a type with a Pokémon in its Set, the flow of that particular Set drops to four bars, though the others remain unaffected. The Shadow Pokémon's matchup against the Pokémon it faces in the circle also influences flow i.e. being super effective strengthens it, while not very effective or ineffective matchups weaken it.
High flow increases the Set's tempo (Japanese: テンポ Tempo), which causes the music within the chamber to accelerate and speeds up purification. Low flow will purify Pokémon at a rate similar to just walking around with the Pokémon in the party. While flow and tempo are increased in similar ways, they are mechanically distinct. This distinction is particularly important for Shadow Lugia, which resists standard purification methods: purifying it requires maximum tempo across all nine Sets, which does not necessarily correspond to maximum flow in each Set.[1]
Purification rate
Every 161 steps, the Purify Chamber lowers the Heart Gauge of a Shadow Pokémon by a value calculated as follows:
- The number of non-Shadow Pokémon in the outer ring determines the base value: 10, 27, 49, and 96, respectively.
- Each supereffective type matchup in the outer ring adds 6; each not very effective matchup subtracts 3. If the Set has 4 Pokémon, this effect is doubled.
- The Shadow Pokémon's type matchup against the Pokémon it faces in the circle then applies a multiplier: ×4⁄3 if super effective, ×2⁄3 if not very effective. The final value is rounded up to the nearest integer.
- If at least two Sets have "perfect" flow (i.e. contains four non-Shadow Pokémon with unique, synergistic typings), all such Sets receive a cumulative bonus based on how many total Sets meet the condition: +1, +5, +10, +15, +25, +35, +50, and +100, respectively.
Unlike other purification methods, the Shadow Pokémon's Nature has no effect in the Purify Chamber.
Example setup

A sample setup of a Set that has strong flow all around would be as follows:
| → | ![]() Murkrow Dark Flying |
↓ |
![]() Lanturn Water Electric |
![]() Shadow Snorunt Ice ↓ |
![]() Chimecho Psychic |
| ↑ | ![]() Gloom Grass Poison |
← |
Gallery
-
A Purify Chamber with maximum Tempo.
-
A Purify Chamber with high Flow.
Trivia
- The in-game tutorial (accessed by interacting with the lady in the middle of the chamber and navigating to "Info" and then "Usage Demo") shows a Shadow Loudred, despite no Trainer owning one in either Pokémon Colosseum or Pokémon XD: Gale of Darkness.
- Additionally, the Shadow Carvanha is shown as level 25, when it is actually caught at level 15.
In other languages
| Language | Title | |
|---|---|---|
| French | Purificateur | |
| German | Cryptorbis | |
| Italian | Purificatore | |
| Spanish | Cámara de Purificación | |
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flow
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tempo
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References
| This game mechanic article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games. |




