During the winter season, indoor farm work can expose workers to hazardous gas, fumes and dust.

Ventilation is important.

Kate McCoy is the manager for Occupational Health and Safety Surveillance Program for the Department of Health Services and says there can be some hazards this time of the year.

"Any time you are doing inside work, there can be certain types of hazards depending on what you are doing. Sometimes, certain types of work can stir up dust that are in that environment, or are chemicals being used indoors."                                       

Improving air quality with winter ventilation removes excess moisture, ammonia, and dust which can prevent illnesses in livestock.