
Pure n Natural Systems, Inc.
www.purennatural.com
1-800-237-9199
PLEASE READ AND SAVE THESE INSTRUCTIONS
WARNINGS:
1. Always unplug or disconnect the air cleaner from power supply before servicing.
2. To reduce the risk of electric shock or injury to persons, do not expose to water or rain, do not use in a window.
3. Do not use this fan with any solid-state speed control device.
4. It is highly recommended that a licensed electrician or licensed HVAC contractor install units.
INSTALLING YOUR MARK-SERIES AIR CLEANER
EQUIPMENT
The MARK-SERIES air cleaners are equipped with (4) eye bolts pre-
installed 16” on center on the top of each unit. Also included are (4) eye
lags, (4) “S” hooks and industrial hanging wire. These units can be
plugged in or hard wired. Each unit includes a 1-year supply of filters
which consists of twelve (12) pre-filters, six (6) carbon filters, or (1)
Carbon V-Bank filter, and one (1) metal-wrapped HEPA filter.
INSTALLATION FOR SOLID CEILINGS
Step 1. Locate studs in the ceiling. Eye bolts on systems are sixteen
inches square. Screw in the four eye lags provided into the studs. Attach
the four S hooks to the eye lags and close the S hooks around the eye
lags to secure. You can also hang the unit(s) down from the ceiling with
the industrial hanging wire included, or with chains. Raise system and
attach to the four eye bolts with the open end of the S hooks. Close the S hooks around the eye bolts (or chains, depending
on your hanging hardware).
INSTALLATION FOR DROP CEILINGS
Step 1. Remove tile from ceiling grid.
Step 2. Unit can be secured to beams, rafters or joists above the drop ceiling. Thread the industrial hanging wire provided
through one eye bold and twist wire together. Make sure the wire is tight. Eye bolts on the systems are sixteen inches
square. Next, take the wire and go up and over a beam, rafter or joist letting the wire hang so it can be twisted to the
opposite eye bolt. Repeat procedure with remaining two eye bolts.
Step 3. In a case where there are no beams, rafters or joists, the unit needs to be secured to the main structure above the
drop ceiling. There are four eye lags provided to screw into the main structure. Eye bolts on the systems are sixteen inches
square. Thread hanging wire provided through one eye bolt and twist wire together. Make sure wire is tight. Thread loose
end of wire through two parallel eye lags in the main structure. Twist the loose end of wire to opposite eye bolt. Repeat
procedure with remaining eye bolts and eye lags.
Step 4. Hang so that the top of the system will be flush with the drop ceiling. Therefore, you will not see any of the hanging
apparatus. Fill any gap in the drop ceiling by cutting down the ceiling tile, removed at the beginning of the installation, to the
correct measurement and inserting back into the grid.
For units with factory installed remote controls: Units are equipped with a remote transmitter and receiver (2 included
key fobs). The key fobs are programmed to work ONLY with the unit they were programmed to. (For multiple units, each
key fob is tagged with a corresponding number also found on the air cleaner.) In order for the remote-control key fob to
work properly, please keep the rocker switch on the unit in the ON position. If your key fob(s) get lost or misplaced, you
can control the air cleaner by using the rocker switch on the air cleaner.