Efficient Secondary Filtration - This vacuum filter bag acts as a secondary filter beneath the main filter, effectively trapping fine dust, dirt, and allergens to prevent airborne particles from escaping. Ensures cleaner indoor air quality and a healthier living environment. Includes one brand-new filter bag. Precise Compatibility - Designed exclusively for Love-Less Ash Cheetah II, Cougar, and Cougar Plus ash vacuum models. Compatible with Cheetah II MU305 and Cougar MU405 (check your model before purchase). **Not compatible with other vacuum brands or models. Premium-Quality Material - Crafted from durable polyester fabric with low airflow resistance, this bag offers superior filtration for microscopic dust and microbes. Reinforced seams ensure long-lasting performance and extended service life. Quick & Safe Installation - Replace your filter effortlessly: Loosen the strap clamp around the filter base, remove the old bag, and secure the new one tightly before re-fastening the clamp. **Pro Tip:** Perform replacements outdoors to avoid indoor dust spillage. Reliable Customer Support - Double-check your vacuum model and part number prior to purchase. Contact us via email for prompt assistance with product inquiries or compatibility concerns.