General description vhbw offers a high-quality, precision-fit HEPA filter designed for Doctor-San X3 and X2 air purifiers. This filter effectively removes 99.97% of small particles down to 0.3 microns, making it ideal for allergy sufferers. Constructed from carefully selected materials, these filters enhance filtration performance by extracting tiny dust particles and impurities, such as household dust and pollen, from the air. Their enlarged surface area allows for thorough filtration of pollutants and even odors, resulting in a more pleasant indoor environment and improved air quality. Technical specifications Filter type: HEPA filter Diameter: 20 cm Height: 29 cm Weight: 1055 g Material: fleece Color: white / grey Replacement cycle: every 3 - 6 months 3-stage filter system: pre-filter, HEPA filter & activated carbon Removes 99.97% of particles down to 0.3 microns Without RFID chip Compatibility and accessories Compatible with Doctor-San X3 Compatible with Doctor-San X2 Replacement