Carpet as a floorcovering choice in healthcare facilities is increasing in popularity. Technological advances have made carpet an appropriate choice not only for common areas and offices, but also for patient rooms. Color options are diverse, and can serve patient care concerns, such as orientation for patients with Alzheimer's disease. Carpet performance is related to its density, construction and fiber/yarn type. Many carpet types have antimicrobial treatments to aid in reducing the propagation and spread of microorganisms. Carpet is also tested for emissions of volatile organic compounds based on industry criteria. Proper maintenance is essential to maintaining carpet appearance and useful life.