General description HEPA filter designed for air humidifiers, providing healthy air and advanced humidification. This high-quality air filter effectively absorbs scale and can replace filters for various models. Technical specifications Material: Filter paper Color: Blue Replacement period: 6-10 months (depending on usage and environment) Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with models: HU3915, HU3916, HU3918, HU2716, HU2718, FY3446 Package Contents: 1 x filter