Within the hierarchy of infection control, which category is generally the cheapest and easiest to implement/maintain (though lowest in the control hierarchy)?

Correct answer: A. Personal protective equipment (PPE)

• A. Correct. PPE (gloves, masks, gowns, eyewear) is inexpensive and easy to deploy/maintain, though it sits lowest in the hierarchy of controls.
• B. Engineering controls (e.g., sharps containers, ventilation) cost more to install.
• C. Elimination removes the hazard entirely and is most effective but not 'cheapest/easiest.'
• D. Substitution replaces a hazard with a safer alternative and is higher in the hierarchy.