A chimney brush is a specialized cleaning tool designed to remove soot, creosote, and debris from the inside of a chimney. It typically consists of a long, flexible handle and a brush head made of durable materials like nylon or wire. Regular use of a chimney brush helps maintain proper airflow and reduces the risk of chimney fires. Using a chimney brush is an essential part of chimney maintenance, especially for those who use wood-burning stoves or fireplaces. It is often recommended to clean the chimney at least once a year to ensure safety and efficiency in the heating system.