- Upgrade your air quality with one Replacement HEPA Filter designed specifically for the Fellowes AeraMax 300, AeraMax 290, and AeraMax DX95 Air Purifiers. This filter replaces OEM part # 9287201 and Fellowes part numbers HF-300 and AP-300PH. - Engineered for optimal filtration, this HEPA filter effectively captures airborne particles as small as 0.3 microns, ensuring that you breathe cleaner, healthier air in your home or office. - Regular maintenance is essential for peak performance. We recommend changing your HEPA filter every 12 months with normal use to maintain efficient air purification. - Perfect for allergy sufferers, this filter helps reduce allergens, dust, pollen, and pet dander in your living spaces, creating a more comfortable environment. - Ideal for use in bedrooms, living rooms, and workspaces, the filter enhances air quality whether you're sleeping, working, or relaxing. - Constructed from durable materials, the filter guarantees long-lasting performance and compatibility with Fellowes air purifiers. - Ensure your air purifier operates at its best with this high-quality replacement filter, providing you peace of mind and a healthier home atmosphere.