DeVilbiss Champion DCR Serie Manual De Instrucciones página 8

A. HOW TO USE CHEMICAL CARTRIDGES AND PARTICULATE FILTERS
1. Particulate Filters
Before using a particulate filter, you must confirm that:
a. The atmosphere is non-IDLH and not oxygen deficient,
b. The contaminant is a particulate hazard, and
c. You must determine the hazard ratio (hazard concentration/exposure limit).
If the hazard ratio is less than 10, you may use a half mask respirator with a filter
efficiency of 95% or higher.
If the hazard ratio is less than 20, you may use a full facepiece respirator with a
filter efficiency of 95% or higher.
If the hazard ratio is less than 100, you may use a full facepiece respirator with a
filter efficiency of 99% or higher.
If the hazard ratio is greater than 100, you must use another type of respirator.
N-series filters must only be used for non-oil containing aerosols or particulates. Please
refer to the section F, Particulate Filter Service Life, for important additional information.
Refer to NIOSH Guide to the Selection and Use of Particulate Respirators Certified
Under 42CFR84 for additional guidelines on use limitations for filters.
Filters improperly used or improperly assembled to the facepiece
could cause leakage, which could lead to serious illness or death.
2. Proper Filter Installation
a. Ensure that you have the correct cartridge and/or filter type for the
contaminants in your work area. If you are not sure, consult your supervisor
or safety professional.
b. Check filter pads; if the filter retainers are loose, insert the appropriate pad
into the filter retainer so that the side stamped with the model number will
face toward the facepiece when installed.
c. Completely snap the filter retainers onto the cartridges or filter holders.
d. Inspect the filter through the filter retainer to ensure that the entire edge of the
filter is making contact with the filter retainer and the filter is not bunched or
folded.
e. The outer edge of the pad must be compressed between the top edge of the
cartridge or filter holder and the inner sealing rings of the filter retainer.
WARNING
Service Bulletin
SB-25-062-A
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