Description
xRefresh and protect your indoor air
The Hfunmo FLT4825 filter set is designed to refresh the air in rooms where you spend time most—living spaces, bedrooms, home offices, and kitchens. Built for Guardian air purifiers, this pack combines three true HEPA filters with nine pre-filters that include activated carbon. The result is a practical, low-maintenance option for ongoing air quality improvement without making promises or guarantees.
Compatibility and fit
These filters are compatible with Guardian AC4825, AC4825E, AC4300BPTCA, AC4850PT, and AC4900CA models. They are not compatible with the AC5000 series. Before replacing, verify your purifier model to ensure a secure fit and optimal performance.
What’s inside
- 3 true HEPA filters capture particles as small as 0.3 microns with 99.97% efficiency
- 9 pre-filters, including 6 extra pre-filters for extended use
- Activated carbon pre-filters help reduce odors and VOCs
- Bulk value pack designed for long-term replacements up to 18 months of use
- Support and warranty: if a filter doesn’t fit, we will assist promptly
Real-life use and benefits
In everyday life, the set supports a calmer, more comfortable living space. Think of a fresher aroma after cooking, a lighter feel in a dusty home office, and a quieter night when particulates are lower. Benefits are presented as possibilities rather than guarantees, reflecting varied room sizes and air conditions.
Maintenance is straightforward: rotate the filters on a schedule that matches your usage, replace the pre-filters as odors or VOCs return, and keep the purifier running with fresh HEPA ones to maintain strong airflow. The aim is consistent, reliable air freshness and predictable maintenance cycles.
Tips for getting the most from your filters
- Schedule regular pre-filter changes to extend HEPA life
- Run your purifier on a low-speed setting after replacement for a quick air refresh
- Maintain good room ventilation alongside filters
FAQ
Q: Which Guardian models are compatible with the FLT4825 replacement?
A: Compatible with Guardian AC4825, AC4825E, AC4300BPTCA, AC4850PT, AC4900CA; not compatible with AC5000 series.
Q: How long can I expect to use this filter pack?
A: The pack includes 3 HEPA filters and 9 pre-filters for up to 18 months of use, depending on usage.
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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