Portable First-aid Kit

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The Portable First-aid Kit is a Directional EC Unit in the Stationary Security Service game mode of Arknights, introduced in the second Dispatch Cycle, "Recapture Land", and can only be used in Raythean Industries Test Platform.

The Portable First-aid Kit passively applies the following effects:

  • Whenever friendly units are overhealed, the friendly gains a Barrier which absorbs Physical and Arts damage equal to the overhealed amount and can be stacked without a limit.
  • Every 7 seconds, friendly units within the range of Medics restore HP equal to half of the Medic's ATK.

When the Portable First-aid Kit is deployed, the player can transfer up to 2 out of 4 random Operators (and only Operators) in the Preparation Area and all deployed Medics will receive one Tactical Equipment for every Operator transferred this way, which matches their respective class.

Directional EC Components

Portable First-aid Kit upgrade A.png
Branch A: Efficiency Capsule
Now gives 1 SP to friendly units whenever they are healed directly.
Portable First-aid Kit upgrade B.png
Branch B: Stimulation Shot
Now buffs the ATK of friendly units by 50% for 3 seconds whenever they are healed directly. The buff does not stack if the friendly is healed multiple times in succession, but the duration is refreshed.


HP 100
Aggression level 0
DP cost 5
Redeployment time 5 seconds
Block count 0
Attack interval N/A


Portable First-aid Kit
Auto Recovery
Effect Initial SP SP cost Duration
On deployment, views a random selection of 4 units from the Preparation Area and selects 0-2 units to be transferred to the Deployment Waiting Zone; all Medic Operators currently on the field gain Tactical Equipment corresponding to the class of those units 0 0