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Introduction | FDA / USDA advice
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How air doors work |
Air Door features | Aire Door models
| Make up air fans | Summary
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Free consultation | Wind factors | Negative air pressure
FDA and USDA advice
Food industry clients, in particular, are
especially concerned with protecting their facilities from contamination.
From
the FDA . . .
As the following excerpt from the Food Establishment Plan
Review Guide 1997 illustrates, the US FDA specifically
recommends the use of air curtains and controlled air currents for the exclusion of
insects.
Food and Drug Administration and Conference for
Food Protection
FOOD ESTABLISHMENT PLAN REVIEW GUIDE
1997
SECTION III
FOOD ESTABLISHMENT GUIDE FOR DESIGN, INSTALLATION, AND CONSTRUCTION
RECOMMENDATIONS
PART 13 - INSECT AND RODENT CONTROL
Openings to the outside shall be effectively protected against the entrance of
rodents. Outside openings shall be protected against the entrance of insects by the
installation of tight fitting, self-closing doors, closed windows, self-closing serving
windows at drive-throughs, screening, controlled air currents (emphasis
added), vestibules or other means approved by the regulatory health authority.
Screen doors shall be self-closing and screens for windows, doors, skylights, transoms,
intake air ducts and other openings to the outside shall be tight fitting and free of
breaks. Screening material shall not be less than sixteen mesh to the inch. Seal openings
around pipes, conduit or wiring entering the building from the outside.
Loading docks and delivery doors must be provided with effective air
curtains (emphasis added) or vestibules with self-closing doors to
preclude the entrance of insects. It is recommended that outside lighting around loading
areas and entrances be sodium vapor rather than mercury vapor to decrease insect
attraction.
From
the USDA . . .
As the following excerpt from the Federal Register 1997
illustrates, the USDA also discusses the use of air curtains and make up air fans in their
recommendations.
Federal Register
August 25, 1997
(Volume 62, Number 164)]
[Rules and Regulations]
. . . . This Guidebook is intended for use by meat and poultry establishments in
considering decisions about design and construction of their facilities, as well as the
selection of equipment to be used in their operations . . . .
[Page 45032]
. . . . * The air curtain or air door is a door that uses a layer of air generated by
mechanical fans to separate two rooms or areas. If you select this door, consider the
following: ** This door needs to be carefully selected, installed, and maintained to be
effective. ** If an air imbalance (pressure imbalance) develops at the door opening, the
separation effect may be diminished or eliminated. Air imbalance can occur from air flow
changes from any other openings in the rooms especially other doors . . . .
[Page 45033]
. . . .* When exhaust fans are installed, provision should be made to provide
enough outside make up air
(emphasis added) to prevent air from being drawn into and through docks, coolers, and production
areas to the area served by the exhaust fan. . . . .
Introduction | FDA / USDA
advice
How air doors work |
Air Door features
Aire Door models
Make up air fans | Summary
| Free consultation
Wind factors | Negative air pressure
