Description
xUpgrade your AD3500 air purifier with a complete 4-pack filter set
From 7th Science Gear, this replacement bundle is engineered for the AD3500 family, including AD3500, 3500i, and compatible models. The fit is precise, helping your purifier maintain strong performance without guesswork or tools. Whether you’re refreshing after a season of use or preparing for regular maintenance, this kit puts replacement parts at your fingertips.
What’s inside this 4-pack
- 1 genuine main filter tailored for the AD3500 series
- 1 activated carbon filter built from FSC-certified wood to help address common odors
- 2 washable pre-filters to capture larger debris before reaching the main filter
Why this set offers value and practical benefits
- Compatibility you can count on: designed for AD3000/AD3500, 3500i, 3000M, and 3000Pro models for a snug, effective fit
- Multi-stage filtration works in harmony: the ultrafilter layer targets fine dust, seasonal pollen, and pet dander, while the carbon filter tackles odors from cooking, pets, and smoke
- Odor management without guesswork: FSC-certified wood carbon filtration adds an eco-friendly touch to odor control
- Two washable pre-filters extend the life of the main filter by catching larger particles early
- Convenient 4-pack in one bundle: enough supplies for multiple replacements and ongoing purification without frequent reorders
- Easy installation and maintenance: snap them in place with no tools required, and plan replacements every 6–12 months based on use
With this kit, you can keep your air purifier performing near its best while maintaining a comfortable indoor environment. The combination of a dedicated main filter, carbon odor control, and washable pre-filters offers a practical approach to routine maintenance, backed by real-world usability and a straightforward replacement cadence. 7th Science Gear aims to help you sustain clean air with thoughtfully designed replacements that fit your AD3500 series purifier without complications.
FAQ
Q: What is included in the 4-pack replacement set?
A: The set includes 1 main filter, 1 carbon filter, and 2 washable pre-filters, compatible with AD3500, AD3000, 3500i and related models.
Q: How often should I replace these filters?
A: Replacement is recommended every 6–12 months depending on usage and air quality; washable pre-filters can be cleaned and reused.
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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