FOR Air humidifier filters HU3915/HU3916/HU3918/HU2716/HU2718/FY3446 models Replacement accessories washable, ensures noticeably better air, long-lasting suction performance, protects against pollen, dust and Easy to clean and fit: the replacement filters can be quickly and easily removed, replaced and washed Regular filter replacement: for optimal filtration and strong suction performance, regular filter replacement is recommended RECOMMENDED REPLACEMENT: It is recommended that the filter be replaced every 4-6 months to optimal results. [Product Name]: Compatible with (for ) air purifier filter elements [Compatible models]: for HU3915/HU3916/HU3918/HU2716/HU2718/FY3446 [Product use]: Purify the air Colour:As shown Material: Plastic+Filter Paper Package Contents: 2 * HEPA Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.