Features:_x000D_ _x000D_ Made of high-quality materials, durable, wear-resistant, corrosion-resistant. _x000D_ Using cotton filter, 99.97% of allergens and pollution can be captured from the air to improve air quality. _x000D_ The installation method is simple, and the old or damaged parts can be replaced directly to improve the working efficiency of the air purifier. _x000D_ It helps to remove dust from the home and prolong the service life of the air purifier. _x000D_ This filter is perfectly fit for Holmes AER1 total air HAPF30AT-U4R. _x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Item Type: Air Purifier Filter_x000D_ Material: ABS, Cotton_x000D_ Fitment: _x000D_ Fit for Holmes Holmes AER1 total air HAPF30AT-U4R_x000D_ Fit for CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9422, HAP9424_x000D_ Weight: Approx. 125g / 4.4oz_x000D_ Size: Approx. 25.5x12.7x3.7cm / 10.0x5.0x1.5in _x000D_ _x000D_ Package List:_x000D_ 1 x Air Purifier Filter_x000D_ _x000D_ Note:_x000D_ 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding._x000D_ 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Made of high-quality materials, durable, wear-resistant, corrosion-resistant. 2Using cotton filter, 99.97% of allergens and pollution can be captured from the air to improve air quality. 3The installation method is simple, and the old or damaged parts can be replaced directly to improve the working efficiency of the air purifier. 4It helps to remove dust from the home and prolong the service life of the air purifier. 5This filter is perfectly fit for Holmes AER1 total air HAPF30AT-U4R.