Which statement about particulate respirators is incorrect?

The statement indicating that all of the above are correct is valid when considering the context of particulate respirators and the standards set by relevant health organizations.

When airborne precautions are necessary, wearing a NIOSH-certified respirator is indeed required; these respirators are specifically designed to filter airborne particles effectively. The NIOSH (National Institute for Occupational Safety and Health) certification ensures that these respirators meet strict criteria for filtering out harmful particles, including those in the size range of 0.1 to 1.0 micron, which is essential during environments where tuberculosis and other airborne illnesses might be present.

Moreover, the CDC (Centers for Disease Control and Prevention) provides guidelines that recommend the use of N95 respirators or higher for protecting healthcare workers and others from exposure to tuberculosis, which is an airborne disease. This recommendation aligns with best practices for infection control and is based on research regarding the effectiveness of such respirators in filtering out airborne pathogens.

Therefore, affirming that all statements about particulate respirators are correct reflects true information about their usage, standards, and the importance of proper respiratory protection in specific clinical scenarios involving airborne infections.