The Love-less Ash 6F44 ash vacuum cleaner secondary filter is responsible for keeping debris out of the most important part of an ash vacuum; its motor. Primary filters may not protect the heart of your vacuum, hence the need for a secondary filter. Cleaning up wood stoves and fireplaces are a chore to clean, but an ash vacuum makes it relatively easy to clean. The secondary filter also prevents ash from being reintroduced into the air. The filter covers a spring mounted cage so it reduces the need to remove the lid while cleaning. The Love-less Ash 6F44 is an easy to clean filter that is essential for your ash vacuum.