Grizzly G0573 Filter Capacity, To calculate the recirculating rate for a given, Volume, Step

Figure 2 shows an example of poor air circulation,		Filter Capacity
where the air filter is placed too close to obstruc-
tions and the velocity of the air is lost and circula-
tion is diminished.	The G0573 Two Speed Floor Air Filter is designed
	to recirculate the entire volume of air in a 30' x 40'
	x 8' room approximately 12 times in one hour.
	For the best filtering effect, the volume in a room
	should be recirculated at least 6-8 times every
	hour.
	To calculate the recirculating rate for a given
	volume:
	Step 1. Calculate how long it takes to circulate
Filter	all the volume of air in a room with the air filter;
	where	W = Width, L = Length and H = Height of
	your room, in feet. The highest rate of air move-
	ment for the air filter is 2000 cubic feet per min-
	ute.

Figure 2. Poor air circulation, filter is placed too

close to the wall.

W' x L' x H'	= Minutes for one recirculation change
2000

Below is a list of things to keep in mind when selecting a spot for the air filter:

•Study your shop layout and try to determine the best location. Obstructed air flow will cause a short cycle effect, producing unsat- isfactory results. There must be a clearance of at least 5-10' between the front and back of the unit and any obstructions.

•Try to place the air filter near areas where sanding will take place.

•Try to place the unit where it is easy to access for turning on, cleaning, and main- taining.

Step 1:	30' x 40' x 8'		=	9600	= 4.8 Minutes
	2000			2000
Step 2. Calculate how many times per hour the
volume is recirculated through the air filter by
dividing 60 minutes by the amount of time it takes
to circulate the volume once. The result is listed
as times per hour.
Step 2:	60	= 12.5 Times per Hour
	4.8

G0573 Two Speed Floor Air Filter -9-