Description
xBreathe easier with the Oterbear 4000B air purifier, engineered for homes and bedrooms where fresh air matters. The unit blends a pre-filter, an H14 HEPA stage, and activated carbon to target a broad range of pollutants—from dust motes in daylight to cooking smoke and pet dander. In everyday use, you may feel a noticeable difference in air quality after a short cycle, especially in spaces shared with kids, pets, or seasonal allergens.
High-grade filtration for demanding spaces
The H14 level in concert with a dedicated pre-filter delivers filtration performance that can surpass standard HEPA options. This setup traps fine particles and reduces odors via activated carbon, helping you maintain a cleaner, more comfortable living area.
- Three-layer design: pre-filter, H14 HEPA, and activated carbon
- Captures dust, pollen, smoke, pet dander, and VOCs with high efficiency
- Rapid air refresh for spaces up to 1250 ft² with 360° intake
Pet-friendly and aroma-ready
Designed with pet households in mind, the activated carbon stage helps curb pet odors and cooking smells. A built-in aroma diffuser lets you add a few drops of your favorite essential oil, releasing a gentle fragrance that complements clean air.
- Odor reduction for pets and everyday cooking
- Integrated aroma diffuser for a calming ambiance
- Quiet operation supports daily life and restful sleep
Quiet, adaptable operation
Sleep mode lowers noise to less than 24 dB, making late-night use more comfortable. Indicator lights can be turned off for a darker room, while you can choose from three fan speeds and three timer settings to suit your routine.
- Under 24 dB in sleep mode for peaceful nights
- Three fan speeds for adjustable filtration
- Timers: 2, 4, or 8 hours to fit your schedule
Safety, maintenance, and support
Certified by CARB, FCC, and EPA, this purifier aligns with established air quality standards. A handy reminder helps you know when to replace the filter every 3–6 months, with simple options to source replacements and responsive 24-hour support if needed.
FAQ
Q: What coverage does the Oterbear 4000B offer?
A: Covers up to 1250 sq ft with 360° intake, suitable for bedrooms, living rooms, offices, and more.
Q: Is the purifier quiet enough for sleep?
A: Yes, sleep mode runs under 24 dB, with an option to turn off indicator lights for a restful night.
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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