Features: Effectively remove allergens and pollutants and captures ultra-fine particles from the air including pollen, bacteria and pet dander, etc. Help capture odors and potentially harmful toxins like paint fumes Year-round purification and circulation smooth oscillation. Pre-filter traps larger particles in the air like dust, hairs, pet fur, lint, and more. Activated Carbon Filter absorbs household odors from pets, cooking, smoking, and harmful VOC?s. Adopt True HEPA Filter with H13 grade which meets the High-Efficiency Particulate Air (HEPA) standard.H13 Grade True HEPA Filter captures 99.97% of airborne particles down to 0.3 microns in size. Easy to install and easy to replace and disposable, no tools required. Replace every 6 months for optimal performance. We clearly understand your concerns and we have conducted countless experiments. After experiments, we found that as long as the ultraviolet wavelength is greater than 200nm does not produce ozone and other harmful substances. Specification: Size: 18.8*19cm (7.4*7.48inch) Suitable for: DYSON TP00 TP02 TP03 AM11 Packing Include: 1 x Air cleaner filter Efficiency Filtration System Make life healthier Easy to install Ultra-Quiet Effectively remove allergens and pollutants Compatible with Dyson TP02 TP03; TP02 US Sm/Nk TP02 US Nk/Nk, Dyson tower purifiers and Dyosn Pure Cool Link(1st generation), replaces part 968126-03, part numbers: 305158-01, 305159-01, 308400-01, 308401-01 True HEPA filter with charcoal layer is essential for households with Children, Seniors, Pets, smokers and Asthma sufferers, no more nasty smells in your house True HEPA filter captures up to 99.97% of particles as small as 0.3 microns in size from your indoor air such as mold spores, pollen, lint, household dust, dander and more Package includes 1 replacement filter, size 7.4" H x 7.4" D.