Effluvial Buildup


Effluvial buildup lowers your maximum health.

Effluvial Buildup is a Status Effect in Monster Hunter World (MHW). This effect reduces a Hunter's maximum Health. Effluvial Buildup is a Player-and-Ally only effect and cannot be inflicted on Monsters.


Effluvial Buildup Effect

Effluvial Buildup is caused by attacks from Vaal Hazak. At a certain point, the effect will trigger, causing maximum Health to be reduced by half its current value.

The effect can be recognized by this symbol: EffluvialBuildup on the HUD

Effluvial Buildup can be removed by consuming a Nulberry, or negated entirely with the Effluvia Resistance Skill.

Effluvial Buildup is not to be confused with the damage caused by the cloudy areas or acid pools found in the Rotten Vale. Resistance to these two hazards are granted by the Effluvial Expert Skill.


Monsters that can Inflict Effluvial Buildup



Status Effects
Abnormal Status Attack Increased  ♦  Affinity Up  ♦  All Ailments Negated  ♦  Attack Up  ♦  Blastblight  ♦  Bleeding  ♦  Blight Negated  ♦  Defense Down  ♦  Defense Up  ♦  Divine Protection  ♦  Dragon Element Resistance Up  ♦  Dragon Res Boost  ♦  Dragonblight  ♦  Elemental Attack Boost  ♦  Evasion Enhanced  ♦  Fire Element Resistance Up  ♦  Fire Res Boost  ♦  Fireblight  ♦  Health Increase  ♦  Ice Element Resistance Up  ♦  Ice Res Boost  ♦  Iceblight  ♦  Knockbacks Negated  ♦  Muck Res  ♦  Natural Recovery Up  ♦  Paralysis  ♦  Paralysis Negated  ♦  Poison  ♦  Recovery Up  ♦  Resistant to Heat  ♦  Self-Improvement  ♦  Sleep  ♦  Stamina Use Reduced  ♦  Stun  ♦  Stun Negated  ♦  Thunder Element Resistance Up  ♦  Thunder Res Boost  ♦  Thunderblight  ♦  Tremor Negation  ♦  Water Element Resistance Up  ♦  Water Res Boost  ♦  Waterblight  ♦  Wind Pressure Negated  ♦  Wind Pressure Nullified


    • Anonymous

      10 Jan 2019 06:07  

      Btw, if you're here because you want to know if you have to have on effluvial expert if you have maxed effluvial resistance...the answer is yes, you do.

      • Anonymous

        09 Mar 2018 21:18  

        You can eat a Nulberry to remove the effluvial effect. If you have gems or armor that resist effluvial build up you only need it to be at level 3 (3 items or gems) to remove the effect.

        • 18 Feb 2018 15:43  

          I've already beaten the game gotten every food ingredient and unlocked every camp and still this website has no decent information on any of these.

          • Anonymous

            14 Feb 2018 21:43  

            So are you guys like ever going to post actual information in your pages, or do you just plan to leave it at ?? for the rest of the time?

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