Description
xOverview
Transform the air quality in your daily spaces with DerBlue’s 4-piece replacement filter set. Engineered to fit a wide range of Holmes and Bionaire models, these filters are designed for a snug, precise fit and dependable filtration. The result is smoother airflow and a sense of freshness in rooms you spend time in—whether it’s a living room, a home office, or a cozy bedroom.
Rather than a single-use part, this four-pack offers reliable value and a consistent replacement cadence. The filters are crafted to withstand regular operation and help maintain steady performance as you go about your day. While results can vary by environment, many users notice a noticeable improvement in air feel after installation, especially in spaces with shared air or seasonal dust loads.
What’s in the box
- Four filters (each approx. 10 x 4.6 x 1.37 inches)
- Replaces Filter A, Filter D, and Filter K
- Durable construction designed for extended use
- Ready-to-install compatibility with select Holmes and Bionaire units
Compatibility at a glance
- Holmes units: CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, HAP9424, HAP1200
- Bionaire units: HAP412, HAP422, HAP424, HAP702, HAP706, HAP716, HAP1702, HAP2400, HAP9240, HAP9241, HAP9242, HAP9243, HAP9412, HAP9413, HAP9414, HAP9415, HAP9422, HAP9423, HAP9424, HAP9425
- Additional compatibility: BAP260, BAP520, BAP815, BAP825, BAP9200, BAP9417, BAP9427, BAP9435, BAP9700
Durability and value
- Durable materials engineered for long life and steady filtration
- Four-pack provides ongoing convenience and cost savings
- Support from a responsive customer team for compatibility questions or guidance
Note: For best results, aim to replace filters every four months, adjusting for usage and environment. If you have questions, our team is ready to assist you for a smooth, hassle-free experience.
FAQ
Q: Which models are compatible with DerBlue 4 pcs Replacement Filter?
A: Compatible with Holmes and Bionaire units, including CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP424, HAP706, HAP716, HAP9240, HAP9424, HAP1200, and many HAP/BAP models.
Q: How often should I replace the filters?
A: We recommend replacing every four months, depending on usage and room conditions.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.