The filter bowl prevents fly ash from entering the engine filter. Due to the fine ash particles, dust clogs faster than vacuuming other types of waste. That's why I bought it to complement the vacuum cleaner. I always had a clean one on hand. They are easy to clean, just soak them in warm water with liquid dish soap and then rinse with clean water. Let dry. Now for the BAD: after 3 uses and 2 washes this filter is falling apart. The other not yet. Of course I'm a week out of my warranty if he does that. I was given a full 45 day warranty.
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