General description 100% new and high quality, these filters are made of high-quality materials designed to effectively filter fine dust, reducing dust, pollen, and other allergens from the air you breathe. Regular maintenance is essential for optimal performance. Technical specifications Material: Plastic Package Contents: 6 HEPA filters, 1 cleaning brush Measurement allowed error: +/- 1-3 cm Usage It is recommended to replace the filters every 2 to 3 months to maintain the vacuum's performance.