on the extent to which air within the affected room is being mixed
and placement of the unit within the room.
How to Use the Controls
The control panel on the DefendAir EX has one rotary
switch and two indicator lights.
replaced. When testing the filters, run the unit at maximum
speed.
ELECTRICAL CONNECTIONS
The DefendAir EX is designed to operate on a 115V/60 Hz elec-
trical connection. Make sure that the electrical outlet is grounded
and that all safety precautions are taken.
MAINTENANCE
Always turn off the power before performing maintenance proce-
dures. All the service procedures below are to be executed with
the unit unplugged. Perform before each use or as needed. Al-
ways wear an appropriate NIOSH-approved respirator and, if
needed, other personal protective equipment when servicing or
cleaning the DefendAir.
Changing Filters
Check the filters regularly to assure the best performance from
the unit. Test the filters by running the unit at maximum speed
and watching for the filter lights to illuminate. Detach ducting
from both the intake and outlet and check for blockages. Always
wear an appropriate NIOSH-approved respirator and, if needed,
other personal protective equipment when removing or replacing
filters or pre-filters.
PRE-FILTERS: Pre-filter replacement is recommended after
every job to prevent cross-contamination and extend the service
life of the primary filter. Pre-filters should also be changed when-
ever the Pre-Filter Light illuminates during operation.
To change pre-filters:
1. Open the upper filter access panel on the back of the unit just
below the Dri-Eaz logo.
2. Remove the contaminated filters and discard in accordance
with applicable regulations.
3. While the pre-filters are removed, close the filter access panel
and plug the unit in. Briefly turn the unit on and check to see if
the Primary Filter light illuminates for the primary filter. If it does,
replace the primary filter as well. Be sure to turn the unit off and
unplug before continuing.
4. Open the filter access panel and install the new pre-filters.
5. Close the filter access panel.
PRIMARY FILTER: Avoid cross-contamination by replacing the
primary filter after every remediation job. The primary filter
should also be changed whenever the Primary Filter light illumi-
nates during operation.
To change the primary filter:
1. Detach the back panel by removing the six thumbscrews.
07-00403 A 12-01 Copyright 2000, 2001 Dri-Eaz Products, Inc.
VARIABLE SPEED CONTROL: To
decrease airflow, turn knob to the
right. To increase airflow, turn knob
to the left. To power off, turn knob
all the way to the left.
PRIMARY FILTER LIGHT: When
illuminated, the primary filter needs
to be replaced. When testing the
filter, run the unit at maximum
speed.
PRE-FILTER LIGHT: When illumi-
nated, the pre-filters need to be
2. Remove the knob and plastic cap that secure the filter in
place.
3. Lift the filter up and out of the unit.
4. Insert the new filter.
5. Secure filter in place with the knob and plastic cap. Be sure
not to over-tighten
6. Reattach back panel with the six thumbscrews.
Cleaning the Unit
Remember to always wear an appropriate NIOSH-approved res-
pirator and other personal protective equipment when cleaning
or servicing the DefendAir. Clean the unit thoroughly after every
remediation job to avoid cross-contamination.
EXTERIOR: Wipe down the exterior housing with any non-
solvent-based cleaner. Pay particular attention to the area
around the air intake duct. Bring back the original factory shine
with an automotive vinyl cleaner or polish.
INTERIOR: Open the filter access panel and detach the back
panel. Remove the dirty filters. Wipe down the interior of the unit
with any non-solvent-based cleaner. Let the unit dry before in-
stalling clean filters. Reattach the back panel and close the filter
access panel.
Inspect the Electrical System
Inspect the electrical cord for damage at regular intervals. Peri-
odically, detach the back panel and inspect internal wiring for
bare wires, insecure fasteners, and discoloration. Remove and
repair any damaged wiring as needed. Failure to do so may lead
to electrical shock or a fire hazard.
WARRANTY
FILL OUT WARRANTY CARD: Please take a moment to register
your warranty by completing the warranty card. You may also
register your warranty online at www.dri-eaz.com.
INSPECT ON ARRIVAL: When your Dri-Eaz product arrives,
check immediately for signs of shipping damage. If you notice
damage, save the shipping carton for claim purposes, and im-
mediately report the problem to your supplier and the shipping
company. Also, save the carton for shipping in case your product
ever needs repair at a remote location.
Dri-Eaz promises, to the original purchaser, to perform the
following as needed to correct defects in materials and
workmanship:
7 Years on Housing: Repair or replace the DefendAir EX housing
for seven years from date of purchase. (United States and Can-
ada only.)
1 Year on Parts and Labor: Cover parts and labor costs of repair
on the DefendAir EX for a period of one year from the date of
purchase.
90 Days on Shipping: Cover shipping costs for the repair of the
DefendAir EX both to and from a Service Center for a period of
90 days from the date of purchase.
LIMITATIONS: This warranty shall not extend to any products
showing effects of misuse, accident damage, disassembly, al-
teration, lack of proper maintenance, corrosive chemicals, im-
proper voltage, unauthorized repairs, use of other than genuine
parts and materials, fire, flood, normal wear and tear, or any
other causes beyond Dri-Eaz Products' control. The warranty
obligation extends only to the repairs or replacement of parts
found, upon Dri-Eaz Products' examination, to be defective. The
foregoing constitutes the entire warranty and no other warranty,
3