Description
xRefresh your Guardian air purifier with Hfunmo Filter B
The Hfunmo FLT4825 Filter B set is designed to rejuvenate compatible Guardian models, including AC4825, AC4825E, AC4300BPTCA, AC4850PT, and AC4900CA. Note this kit is not compatible with the AC5000 series. The goal is to offer a straightforward upgrade that supports sustained airflow and clean air in everyday spaces.
What you get in this pack
- 2 true HEPA filters capable of capturing particles as small as 0.3 microns, helping maintain a baseline level of air clarity.
- 6 pre-filters made with activated carbon, designed to reduce odors and certain VOCs generated by cooking, pets, and everyday activities.
Why consider this replacement kit
- Extend the life of the main filtration stage by refreshing pre-filters on a regular schedule, which can help preserve airflow and filtration efficiency.
- Value-packed and easy to reorder, this 2 HEPA + 6 pre-filter set offers a convenient route to maintain fresh air between service visits.
Real‑world use scenarios
- Open-plan living rooms with frequent cooking odors, pet dander, or smoke exposure, where consistent filtration can matter.
- Bedrooms or home offices where quiet, clean air aids focus and comfort without making unverified promises about outcomes.
Installation is straightforward: replace the old HEPA units, then slot in the six pre-filters in their respective positions. Always consult your purifier’s manual for orientation and safety guidelines to ensure a proper fit.
Quality and support
Hfunmo stands by the product with a focus on fit and function. If you encounter any fit issues, contact us and we will respond promptly to help resolve the situation.
FAQ
Q: Is this filter compatible with my Guardian air purifier models?
A: Yes, FLT4825 fits Guardian AC4825, AC4825E, AC4300BPTCA, AC4850PT, and AC4900CA.
Q: How long can I expect the filters to last?
A: The pack includes 2 true HEPA filters and 6 pre-filters for up to 18 months of use, depending on usage and air quality.
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.