- Product Details: 2 Pack R1 P1801 Replacement Filter designed for YIOU R1 Air Purifier and Elechomes P1801 P1802 Air Purifiers. Features H13 True HEPA filtration and a 3-stage filtration system. - Compatibility: Specifically engineered to fit YIOU R1 and Elechomes P1801/P1802 Air Purifiers, ensuring optimal performance and air quality. - Value Pack: Includes two R1 Replacement Filters, providing you with an economical solution for maintaining clean air in your home. - 3-Stage Filtration System: Each filter features a pre-filter, H13 True HEPA filter, and an activated carbon filter. This tri-layer system effectively captures allergens, dust, pet dander, and odors, enhancing your indoor air quality. - Easy Installation: Replace filters effortlessly with no tools required. Keep your air purifier running efficiently with minimal hassle. - Practical Applications: Ideal for allergy sufferers, pet owners, and anyone looking to improve indoor air quality. Perfect for use in bedrooms, living rooms, or home offices where clean air is essential for comfort and health. - Material and Performance: Constructed with high-quality materials to ensure durability and effective filtration performance, giving you peace of mind regarding the air you breathe.