Which of the following is NOT a recommended safety measure when dealing with bat droppings?

When dealing with bat droppings, also known as guano, safety is paramount due to the potential health risks associated with their handling, including the risk of histoplasmosis, a respiratory disease caused by a fungus that can thrive in bat feces.

Wearing gloves is a critical safety measure as it protects the skin from direct contact with contaminants that may be harmful. Protective clothing, including long sleeves and pants, further minimizes skin exposure and potential irritation or infection from pathogens. Spraying droppings with water before cleanup is also recommended; this technique helps to prevent airborne particles and dust that can transmit pathogens from becoming airborne, thereby reducing inhalation risks.

In contrast, working without a mask significantly increases the risk of inhaling harmful spores or toxins that may be present in the droppings. These spores can become airborne during the cleanup process, making the mask a vital component of protective gear when handling bat droppings. Therefore, not using a mask is not a recommended safety measure in this context.