---
kind: "section"
citation: "30 C.F.R. § 57.22210"
title: "30"
number: "57.22210"
heading: "In-line filters (I-C mines)."
url: "https://uscodex.org/cfr/30/57.22210"
---

# §57.22210. In-line filters (I-C mines).


Filters or separators shall be installed on air-lift fan systems to prevent explosive concentrations of dust from passing through the fan.


## Notes

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 52 FR 24941, July 1, 1987, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.