©1997, AMERICAN HAKKO PRODUCTS, INC.
ALL RIGHTS RESERVED
6
2. Particle filters.
American Hakko offers the 999-178 cellulose particle filter as an option for the HJ3100. This filter is intended for use in
grinding and shaping operations where dust and chips are produced. It is rated at 85% ASHRAE against particles of 1
micron and larger in size. The particle filter can be cleaned and reused up to five times; the preferred method of cleaning
is to vacuum out the detritus with an industrial vacuum cleaner. It is possible to clean the filter with water or compressed
air. If that is the method of choice, take extreme care lest the debris find its way into the operator's eyes or the local
aquifer.
2. Activated carbon filters.
The standard filter used in the Hakko HJ3100 contains an activated carbon element built into the filter. It, too, will
become saturated with adsorbed contaminants. The activated carbon portion of the main filter unit is designed to last the
life of the main HEPA filter; however, if the fumes being extracted are other than soldering flux fumes, measuring the
exhaust air for the presence of such contaminants will indicate when this portion of the filter is depleted.
Hakko also offers an activated carbon filter, part number 999-182, for applications where odor removal is the prime
consideration; this is the primary filter in the HJ3100-04. This filter should be used with a pre-filter, to keep particles out
of the main filter. Refer to Appendix C.
Both carbon filters have an adsorption rating of 80-85%.
3. Pre-filters
.
The pre-filter is a treated fiberglass pad, rated at 86% arrestance. It removes coarse particles from the intake air. Because
it traps these particles before they can reach the main HEPA/carbon filter, it will become clogged far more rapidly. It will
require more frequent replacement than will the main filter; its useful life depends upon use and the nature of
contaminants being removed.
4. Flammable vapors and gases.
If flammable vapors or gases (e. g. isopropyl alcohol used for cleaning) are present in the workplace air, even in small
concentrations, they will be adsorbed by the filters. The user has the responsibility of ensuring that such vapors or gases
do not constitute a personnel hazard.
-DANGER!-
NEVER
USE THE
H
AKKO
HJ3100
TO EXTRACT FUMES FROM HIGHLY FLAMMABLE LIQUIDS AND GASES
!
T
HERE IS A SERIOUS RISK OF SEVERE INJURY OR DEATH DUE TO EXPLOSION OR FIRE
.
Certain airborne contaminants, when in contact with activated carbon, can undergo chemical reactions resulting in
heat. The Hakko HJ3100 MUST NOT be used to extract fumes from these substances.
5. Disposing of used filters.
All used filters must be handled with care. They may contain hazardous substances such as lead, flux residue, asbestos,
organic compounds, or airborne pollutants extracted from the ambient air. Always use appropriate personal protection
equipment (protective gloves, respirators, and the like) when handling used filters, and dispose of them in plastic
containment bags. Local regulations will dictate the means of disposal.
Filters containing potentially hazardous substances must be handled with extreme caution. Use the material safety data
sheet(s) pertinent to the substance(s) and dispose of such filters per instructions from your local environmental authority.
