FR400 Pre-Filter Replacement Compatible with Austin Healthmate FR400, HM400, HM402, HM405, HM410, HM450 Air Purifier, 1 Activated Carbon+1 White Pre - Filter

["Perfectly Compatible:This Pre-FR400 filter is specifically designed to be compatible with Austin Healthmate FR400, HM400, HM402, HM405, HM410, HM450 Air Purifier","Primary filtration: 2 different pre-filters, which can be used to intercept larger particles， - dust, pollen, pet dander, etc","Value Set: A 2-piece economical combination set that provides more long-lasting health protection. For optimal performance, it is recommended to replace the pre-filter regularly","Professional Production Factory:From raw material selection to professional production operations, ensures the quality of the filter element and thereby provides health protection for you and your family","Buy with confidence: We have always been committed to providing all customers with high-quality and cost-effective air purifier filters to help you build a better living environment"]