Homezone Air Filter is compatible with Dyson Purifier Pure Cool Link Series TP04, DP04 and HP04 This filter is all-in-one Dyson replacement filter system Contents of the pack include 1 complete set of HEPA filters, 1 set of activated carbon filters & 1 cleaning brush Durabasics True HEPA filter captures 99.97% of dust and allergens as tiny as .3 microns to help remove airborne particulates such as household dust, pollen, pet dander, and mold spores This filter is essential for healthy homes and those suffering from allergies or asthma Replace your Dyson compatible Homezone air filter often for the cleanest, healthiest air possible This filter is an ideal solution for homes with pets, smokers, traffic pollution and open layout kitchens Reduce your electricity bill by replacing old, clogged air filters that cause your Dyson air filter to work harder than necessary