Understanding why the airborne components in your coop can cause respiratory disease and how to protect yourself.

Poultry dust is the airborne particulate matter that is frequently present in elevated concentrations inside your chicken coop. Occasionally, (usually) reaching a density sufficient enough that it’s visible to the naked eye. Certainly you have seen this in a ray of light while cleaning.
Poultry dust refers to tiny particles that float in the air and are often found in high amounts inside the coop. This dust is considered “biologically active” because it contains microorganisms, and this is a good reason indeed for wearing a mask in your chicken coop.
Poultry dust poses an elevated risk of respiratory diseases, as its fine particles can transport pathogens deep into the lungs. Inside the chicken coop, airborne components such as softwood dust, fungal spores, and harmful bacteria are continually stirred up by the scratching behavior of your chickens, and when you’re cleaning the coop.
This “dust” contains various harmful components such as manure, feed, feathers, dander, and other residues from poultry. It also includes litter, biological contaminants, endotoxins from bacteria, and inorganic particles from building materials like concrete dust or insulation fibers. If you use substances like diatomaceous earth and chemical powders or sprays used for mite and lice control, lime, and other floor applications they also contribute to the composition of the dust.
Dust particles also can carry viral particles, mites, molds, and more. Smaller particles are particularly dangerous as they take longer to settle, remaining in the air for an extended time and increasing the risk of inhalation.
You can help protect yourself by using a disposable dust mask such as the N95. But, use what you can afford, certainly any mask is better than nothing at all.
