Description
xOverview
Meet the Oterbear 4000B air purifier, engineered for larger living spaces while remaining quiet and easy to use. It blends a multi‑stage filtration system with a built‑in aroma diffuser, offering flexible options for cleaner air and a calmer atmosphere. While it doesn't claim to cure conditions, it presents a practical approach to reducing common indoor pollutants and odors in everyday settings.
Powerful filtration for cleaner air
The heart of the unit is a three‑stage filtration path: a pre‑filter, an H14 HEPA stage, and activated carbon. This configuration targets fine dust, pollen, smoke, pet dander, and VOCs, helping to preserve a fresher feel in rooms up to 1250 square feet.
- Three‑stage filtration with pre-filter, H14 HEPA, and activated carbon
- Filters up to 99.99% of fine pollutants
- 360° air intake accelerates purification
- Effective in spaces up to 1250 sq ft in about an hour
Quiet, sleep‑friendly design
Designed with bedrooms and night-time comfort in mind, it offers a sleep mode that operates quietly and a discretionary option to dim or switch off indicator lights for darkness.
- Sleep mode under 24 dB
- Lights can be turned off for dark rooms
- Three fan speeds with 2/4/8 hour timers
Aromatherapy and convenience
The built‑in essential oil diffuser lets you add a few drops for a gentle fragrance while purification continues, helping to create a more inviting space without added clutter.
- Integrated essential oil diffuser area
- Three timer options: 2, 4, or 8 hours
- Compact footprint suitable for bedrooms, living rooms, and offices
Safety, maintenance, and support
Certified by CARB, FCC, and EPA standards, the unit ships with a clear maintenance reminder to help you keep performance consistent and reliable.
- CARB, FCC, and EPA certifications
- Filter replacement reminders every 3–6 months
- Responsive customer service available around the clock
Who benefits from this purifier
Well suited for homes with pets or allergies, dorm rooms, and shared living spaces where a cleaner atmosphere and optional fragrance can be a nice addition to daily life.
FAQ
Q: What coverage area and filtration level does the Oterbear purifier offer?
A: Covers up to 1250 sq ft with a three‑stage filtration including H14 HEPA, capturing up to 99.99% of fine pollutants.
Q: Does it support aroma diffusion and quiet operation for bedrooms?
A: Yes, it includes an essential oil diffuser and a sleep mode under 24 dB with adjustable lights.
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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