Ideal Air Cleaner Height
The COANDA airflow is ideal for smoke
removal. Smoke naturally rises. In a room with 8 or 9 ft
high ceilings, smoke will collect near the ceiling. Ideal air
cleaner location here is on the ceiling. With higher ceilings,
you will see smoke stratify and collect in a cloud about 12 to 14
feet above the floor. In these situations, electrostatic air
purifier units are
most effective suspended with rods or chains 10 - 12 feet above the
Orientation of Air Cleaners
In most rooms greater than 750 square feet,
more than one air cleaner will be needed. On the page titled
How Many Do I Need?, you can calculate exactly how many of which
unit to use. Here we will show you how to locate and orient
your air cleaners.
Regardless of if you use SE400 or SE800 electrostatic air cleaner
units, you will
want to spread them out evenly, above your smoke problem areas.
They can be oriented so each COANDA airflow pattern will reinforce
In the diagram below, each SE 800 electrostatic air
a complete COANDA pattern. Discharge air from adjacent
purifiers reinforces downward air flow. SE 800s create a
symmetrical airflow pattern, making them very versatile and flexible
in their orientation. It does not matter which way they face.
Just keep 800s spaced out evenly above your smoke or pollution
The SE 400 creates half of the SE 800 COANDA airflow. One unit alone, placed
above the smoke area will create a circular pattern. This is
ideal for a 350 square foot room or a small smoking section located
next to a wall or corner. The inlet side should face the wall
or corner. Dirty air will be sucked into the corner while the
discharge shoots clean air down and out toward the rest of the room.
Clean air will circulate back to the intake.
Several SE 400s can be used together. For example, if you have
a smoking section of tables or seating along a wall, you can hang a
row of SE 400s along that wall. Facing the SE 400s with the
intake toward the wall will create an air curtain. Airflow
above your smoking section will consistently pull pollutants back
toward the wall and into the air cleaner. This prevents smoke
from traveling out to the rest of the room.
When using 2 or more SE 400 air cleaners in an
open space, do not face them all the same direction. They
should alternate. They should be spaced out, with the inlet
sides facing other inlet sides, and outlet sides facing other outlet
sides. Airflow from adjacent air cleaners should reinforce
each other, pushing clean air out and around toward the ground and pulling dirty
air up into the units.
If you only walk away with one thing from this page, remember this.
Setting up the orientation of your COANDA style air cleaners is
similar to playing dominos. Inlet sides face inlet sides.
Discharge sides face discharge sides. The SE 800s are
symmetrical with inlet sides on both ends. This concept is
unique for COANDA air cleaners only.