Instructions / Assembly

Is there a calculation
for sizing a room?
Yes there is, and, it’s really quite simple:
calculate the cubic feet of the room
(Length x Width x Height) and divide
that number by the number of minutes
you would like to exchange the air in
the room (1 – 3 minutes is recommended)
that gives you the recommended minimum
CFM that you need for that room.
Is my fan Speed Controllable?
Yes all of our fans are speed controllable.
Note: *Fans running too slowly may
overheat, causing the fan to turn off.
The 12" Max-Fan requires the use of our
variable transformer control.
Only use a speed or motor control of the
proper amperage to adjust the speed
of the fans. Never use a light dimmer.
Can I push or pull through
the filter?
You can both pull through the filter or
push air through the filter. If you are
going to push air through the filter it is
recommended to take off the outer
pre-filter and place the pre filter prior
to the air entering the carbon bed.
How do I size the proper
fan to a filter?
The same formula for sizing a room
works to size a fan to a filter and a filter
to a room (Length x Width x Height)
gives your cubic feet and then divide
that number by the number of minutes
you would like the air to be exchanged
in that room (1 – 3 minutes is
recommended!!) and that will give you
the recommended minimum CFM that
you need for that room, then you take
that min CFM number and match it to
one of our filters.
What is the warranty on the
filters and fans?
Can-Fans and Max-Fans are warranted
against defects in material and
workmanship for a period of 5 years
from the date of purchase.
Filter products are warranted against
defects in material and workmanship
for a period of 1 year from the date
of purchase.
See terms and conditions of business.
F.A.Q.’S
Instructional videos at