Replacement Pre-Filter for Standard Series Units

This advanced pre-filter, designed to capture noticeable particles like dust, pet dander, and hair, promotes cleaner air. All of our filters are designed to last up to 5 years under normal residential use. Regularly changing the pre-filter enhances the longevity of your primary filter, ensuring consistent purification performance. You can check the size of your existing filter by looking for a label on the bottom of the unit. Model HM400 indicates standard size filter. Elevate your indoor air quality effortlessly with this essential piece.

*This item does not qualify for free shipping*