General description This air purifier filter set includes 4 activated carbon pre-filters and 1 HEPA main filter, designed to be compatible with Winix models 115115, 5300, and 5500. Utilizing True HEPA technology, it effectively removes up to 99.97% of air pollutants as small as 0.3 microns, including dust, pet dander, smoke, odors, dust mite debris, insect spores, and pollen. This filtration system is a pure solution to enhance your home environment, comfort, and personal well-being, particularly during allergy season. Technical specifications HEPA filter technology: Removes 99.97% of particles as small as 0.3 microns CADR rating: 100+ Weight: Approx. 625g / 22oz Dimensions of HEPA filter: Approx. 41 x 32 x 3.2cm / 16.1 x 12.6 x 1.3in Dimensions of activated carbon cotton: Approx. 41 x 32 x 0.5cm / 16.1 x 12.6 x 0.2in Material: Activated Carbon Color: Black + White Installation Easy to install: Simply replace the old or broken filter to ensure proper functioning of the purifier. Usage