4YourHome Premium Quality HEPA Post Motor Filter for Dyson DC41, DC65 and DC66 Vacuums QUALITY COMPATIBILITY- Compatible with Dyson vacuum cleaner post motor filter assembly.Fits the following models DC41, DC41i, DC41 Animal. HEALTH BENEFITS- Known to filter up to 99.97% of dust particles, HEPA filters can cut down the amount of dust you inhale drastically. . IMPROVE PERFORMANCE- Keeping your vacuum cleaner free from blockages and obstructions by replacing its filters regularly not only ensure a top performing vacuuming cleaning system but also reduced incidence of allergies.