Lighting and ventilation in milkhouse.

1. The working areas must be illuminated by a minimum of 50 foot-candles of natural light or artificial light, or both. 2. The milkhouse must be adequately ventilated to minimize odors and the condensation of moisture on floors, walls, ceilings and clean utensils and must contain ceiling vents in a ratio of 1 square inch of venting for each square foot of floor space. Ventilation by means of forced air may be permitted upon approval by the Director. 3. The milkhouse must contain windows whose combined area is not less than 10 percent of the floor area. The windows must be screened with standard, number 16 mesh screens.