GENERAL INFORMATION:
Application
The LAF
M
should be mounted in the room or area where the air is to be cleaned. Removal of such
pollutants as tobacco smoke and pollen from the air in areas like conference rooms, lounges, bingo
halls, offices and the like is the goal of the unit. The LAF
M
provides its own air circulation and as
such can be used for most applications requiring particulate removal.
Under no circumstances should the electronic Model LAF
M,
be used in an atmosphere containing
combustible gases or vapors. These applications are best served by the model HEPA LAF
M
.
Sizing
To size the air cleaner properly, one should know the volume of the room or area to be cleaned. Also,
consider the use of the area so that the number of air changes per hour can be used in conjunction with
the volume. Other considerations to be made may include:
- Ceiling height
- Type of pollutant to be removed
- Outside air quality
- How fast is the level of contamination rising
- What kind of air speed is anticipated
ASHRAE Standard 62-81 recommends several different air change formulas depending on the type of
establishment to be ventilated.
4-5 Air Changes/Hour
6-8 Air Changes/Hour
Small offices, stores, homes
Computer rooms, waiting rooms, large offices, conference rooms
Beauty shops, cafeterias, bingo halls, bowling centers
Bars, lounges, discos, hospitals, casinos
10-12 Air Changes/Hour
12-15 Air Changes/Hour
To determine the number of LAF
M units
needed in a given room, use the method below:
Volume of Room Air Changes/Hour
(cu.ft.:LxWxH) x (use # from table above) = Number of LAF
M units
60,000
The LAF
M
is capable of 400-1000 cfm. This multiplied by 60 minutes per hour yields the 60,000
figure above. It should be noted that this is an optimum figure and the other considerations above
should be made before a final decision is reached.
We
can help you if necessary in making a good
judgment.
8
L A - F M I N S T A L L A T I O N M A N U A L & U S E R G U I D E
Pure n Natural Systems, Inc. | purennatural.com | 1-800-237-9199
