Compatibility and fit - Fits WINIX D360 air purifiers as a replacement for the original part 1712-0101-02. D3 replacement filters are compatible and will perform as well as the filters that come with the unit. Two-stage premium filtration - Filter system consists of (1) Activated Carbon Pre-Filter and (2) True HEPA Filter for effective air cleaning. High-efficiency performance - Designed to remove most airborne particles, including common allergens such as pollen and pet dander, helping you breathe cleaner air at home. Affordability and value - A cost-effective replacement option designed to support year-round air cleaning with confidence. Use scenarios - Pets in the home: reduce pet dander and odors for a fresher living environment. - Kitchens and cooking: minimize odors and smoke from everyday cooking. - Smokers or shared spaces: improve indoor air by reducing smoke and related odors. Material and function notes - Two-stage filtration focuses on removing odors and fine particles to enhance overall air quality. - Compatible with WINIX D360 units and equivalent to original replacement part 1712-0101-02.