One filter change for the Blueair 400 Series. Dimensions: 22.5 in. x 11 in. x 4.25 in.
Frequently Asked Questions
Is this the correct replacement filter for model F400SM? What are the dimensions?
This filter is the SmokeStop replacement filter for all Blueair 400 Series Air Purifiers. It is also known under the part number F400SM. It measures 22.5 in. x 11 in. x 4.25 in.
What is your return policy?
We offer a 30-Day Money-Back Guarantee on all of our products. If you are not satisfied with your purchase for any reason, simply return the product to us within 30 days and we will process your refund. For policy details and exclusions, please read our full Return Policy
What is your shipping policy?
Standard shipping (3-6 business days) is free to the lower 48 states.
Expedited shipping is available for select products. Shipping to Hawaii, Alaska, and Canada may incur an additional fee, depending on the items ordered. With the exception of Canada, we do not currently ship to international locations. Items typically ship 1-2 days after you place your order. For more information, visit our Shipping and Delivery page.
What types of payment methods do you accept?
We accept Visa, MasterCard, American Express, Discover Card, and Diners Club credit cards. Additionally, you can checkout using PayPal.
As a Sylvane shopper, you can purchase with confidence knowing that your information will always remain confidential and secure at all times. Our website is tested daily for security flaws by a well-known third-party security firm. It also meets the security recommendations of the Department of Homeland Security's National Infrastructure Protection Center (NIPC) and passes the FBI's Twenty Most Critical Internet Security Vulnerabilities Test.
After I place my order, when will my credit card be charged?
Your credit card will be charged when your order is shipped.
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