Description
xUpgrade your Shark Air Purifier with Improvedhand HE400/HE401 Filter
Designed to fit Shark Air Purifier 4-Fan models, including HE400, HE401, HE402, and HE405, this replacement set from Improvedhand provides a streamlined path to ongoing maintenance. It aligns with common part numbers such as HE4FKBAS, HE4FKPET, HE4FKPETMB, and HE4FKPRO, offering a versatile option for keeping your purifier ready for daily use.
What makes this filter stand out
- Wide compatibility with multiple Shark 4-Fan models ensures a straightforward replacement.
- The main filter uses precision weaving and micron-grade fibers to create a dense, low-wind-resistance structure for efficient particle capture.
- The activated carbon layer, formed from coconut shell carbon, offers a high internal surface area for adsorption of VOCs and helps reduce odors from cooking, smoke and pets.
- The value pack contains all required parts for standard installation, so you can perform a quick replace without extra tools.
- Easy to install: simply remove the old filter and slide the new one into place for a snug fit.
- Improvedhand backs its products with responsive customer support to help with questions or setup tips.
What’s included and replacement cadence
- Value-packed kit includes the essential main filter and carbon pre-filter components for a complete upgrade.
- Recommended replacement cadence is about every 6 to 8 months, depending on usage and environment.
In real-world use, this combination can help maintain a fresher feel in rooms used for daily cooking, pet care, and routine cleaning. While not a medical device, a clean filtration setup supports airflow efficiency and reduces noticeable odors in shared spaces.
Installation and care tips
No tools are required for the swap. Simply remove the old filter, insert the new one, and resume normal operation. For best results, follow the purifier’s reset steps after replacement.
Brand commitment
Improvedhand is dedicated to delivering high-quality products and reliable support. If you have questions about fit, installation, or performance, reach out anytime.
FAQ
Q: Is this filter compatible with Shark HE400/HE401 models?
A: Yes, it fits Shark Air Purifier 4-Fan models including HE400 and HE401.
Q: How often should I replace the HE400 filter?
A: We recommend replacing every 6 to 8 months based on use and environment.
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.
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