3
STANDARD AIR FILTER STAGES (SUPPLIED WITH THE UNIT)
TRI-KLEEN units come equipped with one pre-filter mounted in the pre-filter compartment and a final stage HEPA filter,
located inside the cabinet:
•
2" deep, pleated pre-filter
treated with an EPA registered antimicrobial agent
.
•
HEPA filter is tested & certified to capture at least 99.97% (9,997 out of 10,000) 0.3-micron particles.
•
HEPA filter is tested & certified to capture at least 99.97% (9,997 out of 10,000) 0.3micron particles. Includes
integrated UV bulb.
Note:
The particulate filters included with this unit do not remove odors, vapors or gases, including volatile organic
compounds.
ALTERNATIVE FILTER (PURCHASED SEPARATELY)
Pleated, high-
capacity, carbon filters are available for capturing OVG. These 2”
-deep filters can be used as a pre-filter to
reduce airborne OVG by chemically bonding the OVG molecules to the surface area of the carbon granules via a process
known as adsorption. The carbon filters also provide a similar level of particulate filtration efficiency to the antimicrobial
pre-filters.
Effective carbon adsorption is dependent upon the amount of carbon and exposed carbon granule surfaces, and the
dwell (contact) time the OVG molecules have with the carbon granules. Operating the unit at lower speed settings to
increase dwell time can therefore improve OVG adsorption, though it is highly unlikely that all of the OVG will be
removed in one pass of air through the unit. Operating the unit in the recirculation mode can increase effectiveness, by
exposing OVG particles to multiple passes through the carbon filter.
It is almost impossible to provide accurate estimates to two commonly asked questions: “how much time will it take to
capture all of the OVG?”, and “how do I know when a carbon filter should be replaced?” Unfortunately, unknown
factors
–
such as concentration levels, fresh-air intake volume, temperature, and humidity
–
prevent establishment of
any more accurate ‘rule of thumb’ than one’s sense of smell. Since off
-gassing of adsorbed OVG can occur when the
adsorption capacity of the filter is reached, replace the carbon filter as soon as odor breakthrough is sensed
.
HOW TO DETERMINE THE REQUIRED NUMBER OF AIR FILTRATION DEVICES (AFD)
1.
Calculate the total air volume (V) in cubic feet (ft³) within the enclosed containment area by multiplying the
length (L) x the width (W) x the height (H), all in feet (V = L x W x H).
2.
Determine the minimum number of air changes per hour (ACH) specification. When no ACH number is specified,
most users target at least 12 ACH for health care applications areas. A good practice is to build in a safety factor
to compensate for filter loading, ducting losses, reduced voltage, and other factors that can reduce actual
installed airflow. For example, if 12 ACH is the objective, enter 15 ACH for a 25% safety factor, enter 18 ACH for
a 50% safety factor, or enter 21 for a 75% safety factor.
3.
Determine the total number of AFD required using the following formula: Quantity = (V x Design ACH) / (AFD
Rating x 60)
4.
Always round up to the next whole number. For example, if the total number of AFD required is 1.32, two units
are recommended, not one.
Example:
How many TRI-KLEEN 500 (each with 500 CFM rated airflow or 800 m
3
/h) would be required to provide FS (a
safety factor) in a 6x5x2,5 containment area?
1.
V = 6,096 x 4,57 x 2,44 m = 2400m³
2.
FS = 10 ~12 for hospitals and clinics and 5 ~6 for other locations
Summary of Contents for TRI-KLEEN 500 UV BR
Page 1: ...TRI KLEEN 500 UV BR PORTABLE AIR FILTRATION UNITS ...
Page 2: ...INSTRUCTION MANUAL ...
Page 24: ...20 ...