General description The vhbw 3x HEPA Filter replacement for Philips HR4920 is a high-quality, precisely fitting filter designed for air purifiers. Made from carefully selected materials, it is ideal for allergy sufferers, effectively filtering ultra-fine suspended matter and the smallest particles such as house dust and pollen from the room air. With an enlarged surface area, this filter thoroughly removes pollutants and allergens, resulting in a more pleasant indoor climate and improved air quality. Technical specifications Dimensions (L x W x H): 17 x 13.7 x 8.5 cm Weight: 245 g Material: microfleece / plastic Colour: white / grey Replacement cycle: approx. every 6 - 12 months Other information Content of delivery: 3x HEPA filter