Stridor is a Teachable Perk 
unique to The Nurse 
. It can be unlocked for all other Characters from Level 30 onwards:
- Descriptions may vary from their in-game version for reasons explained here.
Wiki Descriptions support Mouse-over in Desktop View: hover your mouse cursor over the modifier words (or highlight them) to have a tool-tip reveal their values.
Mobile View displays the values in small print after the modifier words.
| Icon | Tier I | Tier II | Tier III | Description |
|---|---|---|---|---|
 |
4,000
|
5,000
|
6,000
|
You are acutely sensitive to the breathing of your prey. All Survivors' Grunts of Pain are 25/50/50 % louder and their regular breathing is 0/0/25 % louder. "If you don't stop and catch your breath... she will." |
| Icon | Teachable | Description |
|---|---|---|
 |
5,000
|
Unlocking this Perk makes it available in the Bloodweb of all Killers
You are acutely sensitive to the breathing of your prey. All Survivors' Grunts of Pain are several percent louder and their regular breathing is several percent louder. "If you don't stop and catch your breath... she will." May be unlocked in the Shrine of Secrets or in The Nurse's Bloodweb at Level 30. |
Contents
Change Log
Patch 5.1.0
Nerf: Grunts of Pain and Breathing are now multiplicative values. This makes Stridor useless against Iron Will and Off the Record.
Old Breathing Volumes
- Note: the following information no longer applies as of Patch 5.1.0
The percentages on both Stridor and its Survivor-pendant Iron Will 
were misleading in their interaction with one another, as contrary to the popular perception of percentages, they did not represent actual percentages in the Game code, but rather numeric values that were combined additively.
This was ultimately changed with Patch 5.1.0.
A good analogy was a volume slider ranging from 0 to 100, which could also go above 100 if necessary.
- Positive values moved the volume slider upwards, increasing the volume.
- Negative values moved the volume slider downwards, lowering the volume.
Grunts of Pain
| No Stridor | Stridor I (+25) | Stridor II & III (+50) | |
|---|---|---|---|
| No Iron Will | 100 | 125 | 150 |
| Iron Will I (-50) | 50 | 75 | 100 |
| Iron Will II (-75) | 25 | 50 | 75 |
| Iron Will III (-100) | 0 | 25 | 50 |
Regular Breathing
| Stridor I (+0) | Stridor II (+0) | Stridor III (+25) |
|---|---|---|
| 100 | 100 | 125 |
Trivia
- The term "Stridor" describes a high-pitched wheezing sound caused by disrupted airflow, which is also what The Nurse suffers from.
Gallery
Interaction between Iron Will III and Stridor III up to Patch 5.1.0
