vhbw - the clever way High-quality, precision-fit HEPA filter for air purifiers - Removes gases and 99.95% of pollutants from the air - Ideal for allergy sufferers - 360° glass fibre HEPA filter Our vhbw HEPA filters extract the tiniest dust particles & impurities, such as household dust or pollen, from the air. Their enlarged surface area enables them to filter out pollutants and even odours more thoroughly. The result is a more pleasant indoor environment and higher air quality. HEPA filters are disposable and should be replaced every 6 - 12 months. CONTENT OF DELIVERY: - 4x HEPA filter TECHNICAL DETAILS: - External diameter: 18.7 cm - Internal diameter: 15.3 cm - Height: 18.9 cm - Weight: 229 g - Material: fibreglass - Colour: green / white - Replacement cycle: every 6 - 12 months REPLACEMENT FOR Dyson 970342-01, 968126-03, 968126-03, 968126-05 Cost-effective spare parts and accessories without compromising on quality - this is our vhbw promise to you.