asked 26.6k views
4 votes
What is the black stuff on my air filter?

asked
User Martheen
by
8.0k points

2 Answers

2 votes

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

Step-by-step explanation:

answered
User Adam Spicer
by
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.

answered
User EJK
by
7.9k points

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