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Battle Fantasy
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Hazmat Mask item
Hazmat Mask is an unlockable passive item in Battle Fantasy, a mod for The Binding of Isaac.
Description
+1 Black Heart.
Grants an aura around Isaac that has a chance to inflict poison on enemies. The size of the aura increases based on the number of Black Hearts Isaac has.
Whenever an enemy gains poison, they have an 80% chance to get another debuff among the following: Burn, Concuss, Fear, Petrify, Slow, Bleeding, Weakness.
Grants immunity to poison gas.
How to unlock?
Complete Challenge #BF1: Green Goddess.
Item pools
Hazmat Mask can be found in the following item pools:
| Name | Weight |
|---|---|
| Devil Room |
0.5/1.0
|
| Secret Room |
1.0/1.0
|
| Greed Devil Room |
0.5/1.0
|
| Greed Secret Room |
1.0/1.0
|
| Rotten Beggar |
0.5/1.0
|
| Smoky Chest |
0.5/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| summonable | Can be summoned via  Lemegeton. |
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Hazmat Mask have been documented.
| Mod | Item | Synergy |
|---|---|---|
| Battle Fantasy | Spore Sac | Grants immunity to the paralysis caused by Spore Sac. |
| --- | Abyss | Spawns a black locust that has a 10% chance to poison enemies it hits. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Battle Fantasy from the Steam Workshop.
Curse of Remorse 
Return to Sender 
Thunder Flower 
Golden Cookie 
Scarlet Headband 
Strange Bubble