What is the black stuff on my air filter?

asked Apr 13, 2024 26.6k views

4 votes

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2 votes

Answer:it might be soot, mold, or debris.

Step-by-step explanation:

Adam Spicer answered Apr 13, 2024

7.9k points

4 votes

Answer:

So, what's causing this? Soot build-up, also called “black soot deposition”, is most likely the reason behind a black filter.

EJK answered Apr 18, 2024

by EJK

7.9k points

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