This air purifier filter replacement is compatible with Dyson HP01, HP02, DP01, DP03, HP00 models, making it a versatile choice for your Dyson purifying heaters or air purifiers. Its True HEPA filter captures up to 99.97% of particles as small as 0.1 microns, providing effective air cleaning for households with children, seniors, pets, allergies, smokers, and asthma sufferers. The filter captures pollen, lint, household dust, pets dander, smoke, and smog, ensuring cleaner and healthier air for you. Unlike some filters, this one's Active Carbon won't re-release particles back into the air, providing continuous dust holding capacity. Weighing only 0.36 kilograms, it's a lightweight and easy-to-install solution for your Dyson air purifier or heater.