MARS air doors

-Keep insects, dust, dirt and fumes out.
-For use over freezer and cooler doors to reduce humidity and prevent loss of cold air.
-Doors may be left open eliminating the nuisance of opening and closing automatic and manual doors.
-Reduce air conditioning costs.
-Open doors conducive to attracting customers.
-Less risk of accidents yet speeds up customer or personnel traffic.
-Keep premises clean and sanitary.