⦗ Genuine Avalla ⦘ This is the official replacement filter for the Avalla R-90 air purifier. ⦗ Long Life, Less Waste ⦘ Unique R-90 HEPA Fusion technology extends the life of this filter to 12 months. ⦗ Multipurpose ⦘ 3-stage True HEPA, optimised to suit every need. Fast 99.97% removal of allergens, toxins, dust, pollen, smoke, pet dander and any particles down to 0.3 microns. ⦗ Plant a Tree ⦘ Avalla are helping to rebuild natural habitats by planting a tree for every order placed. We power all our operations using renewable energy, we offset all our emissions and we support hydroelectric and wind farm projects in developing countries. Every Avalla product comes with a 2 year warranty and a lifetime of product support.