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VariCel® and VariCel® with Antimicrobial
Operating Data
MERV 13
12" Deep Filters 6" Deep Filters
Filter Face Velocity (FPM)
Initial Resistance (in. w.g.)
Initial Resistance vs. Filter Face Velocity
MERV 14
MERV 14 XL/MERV 13
MERV 11
MERV 11 XL
MERV 14
MERV 11
12" deep filters are rated at 500 FPM filter face velocity.
6" deep filters are rated at 250 FPM filter face velocity.
Recommended final resistance for all VariCel filters is 1.5" w.g.
Operating Temperature Limits
VariCel Model Temperature Limit
Types SH, DH, XL 350°F 177°C
Type HT-500 500°F 260°C
Type HT-725 750°F 385°C
Type HT-900 900°F 482°C
Type NH 200°F 93°C
Underwriters Laboratories Inc. Classification: All VariCels are Class 1. Testing was
performed according to UL Standard 900 and CAN 4-S111.
Prefilters Can Double VariCel® Life
Using prefilters, such as AAF's PerfectPleat®
pleated filters or “5700”
panel filters, will greatly extend the life of VariCel filters.
Options
• VariCel filters can be ordered with faceguards made of flattened,
expanded, galvanized, or aluminized steel on one or both sides
of the filter.
• Factory installed gaskets are available on the front or back
of the header.
• Vinyl coated separators are available for corrosive conditions.
• 11/8" Single Header VariCels, designed for other manufacturers'
equipment, are also available.
10
20
30
50
40
60
70
80
100
90
.1 .2 .4 .6 .8 1 2 4 6 8 10
0
Efficiency by Particle Size*
Particle Size (Microns)
Efficiency (%)
* Tested in accordance with ASHRAE Standard 52.2-2007.
MERV 14 (90-95%)
MERV 11 (60-65%)
MERV 13 (80-85%)
AAF has a policy of continuous product research and
improvement and reserves the right to change
design and specifications without notice.
10300 Ormsby Park Place Suite 600
Louisville, Kentucky 40223-6169
www.aafintl.com
Customer Service 888.AAF.2003
Fax 888.223.6500
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© 2009 AAF International
USGBC Member logo and LEED are trademarks owned by
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