washable foam pre-exhaust filter, though you can add a HEPA filter to the back of the canister. The Mighty Mite comes with a one-year warranty. Just about every part of the vacuum is available ...

While vacuums with bags may also use filters, the bag acts as a pre-filter that helps to keep the fine-dirt filter cleaner, thus extending its performance until cleaning or replacement.

Some handheld vacuums come with an additional filter, called the pre-filter, which is designed to trap larger particles before they reach the main filter. Others come with a HEPA filter ...

While vacuums with bags may also use filters, the bag acts as a pre-filter that helps to keep the fine-dirt filter cleaner, thus extending its performance until cleaning or replacement.