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Filter Only - The Cocoon Indoor Air Cleaning System
Filter Only - The Cocoon Indoor Air Cleaning System
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Already have a compatible fan or need a replacement filter?
This listing includes the washable fabric filter used in The Cocoon Air Cleaner. It is intended for customers maintaining an existing Cocoon or building a system with a fan that meets the required size, airflow, stability, and positioning specifications.
Fan, support, strap, and other components are not included.
At a Glance
- Includes one washable Cocoon fabric filter
- Fan not included
- Upright support not included
- Suitable for replacement and backup use
- Can be used in an approved DIY setup
- Designed for a compatible fan
- Washable construction supports repeated use
- Lower-cost way to maintain an existing system
Best For
- Existing Cocoon owners
- Customers replacing a worn or damaged filter
- Customers who want a backup filter
- DIY users who already own a compatible fan
- Emergency preparedness supplies
- Households preparing for wildfire smoke season
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How The Cocoon Works
When used as part of a properly assembled Cocoon system, a fan directs air through a large fabric filter to help reduce airborne fine particles indoors. The Cocoon is designed to provide a practical, accessible indoor air-cleaning option, particularly during wildfire smoke and other high-pollution events.
Recognition and Performance
The original Cocoon prototype was developed by a Portland State University team and selected as a winning prototype in the U.S. Environmental Protection Agency’s 2024 Cleaner Indoor Air During Wildfires Challenge.
EPA materials report that the evaluated prototype removed more than 80% of PM2.5 within 30 minutes under the challenge’s testing criteria. Portland State University field testing reported an approximately 80% reduction in about 15 minutes.
Note: These results apply to the original prototype, test environments, operating conditions, and components used in those evaluations. Current Cocoon products and customer-created setups may use different fans, filter construction, support methods, or other components. The EPA does not endorse Cocoon Air Quality, its products, or any commercial product, service, or enterprise.
Results may be affected by:
- Room size and layout
- Type and amount of pollution
- Starting pollutant concentration
- Outdoor air entering the room
- Fan airflow and operating speed
- Filter material, size, condition, and installation
- Correct assembly
- Placement of the system
- Length of operation
- Whether doors and windows remain open or closed
- Cleaning and maintenance
Care and Maintenance
The Cocoon fabric filter is designed to be washable and reusable. Allow the filter to dry completely before reinstalling it. Do not operate the system with a wet, damaged, improperly attached, improperly supported, or obstructed filter.
Preorder Information
Reserve yours today. You will not be charged when placing your preorder.
You will receive email updates before your order is ready to ship. Before payment is collected, you will receive advance notice and an opportunity to confirm your order.
Orders are placed through Shopify’s secure checkout system. Shopify provides the ecommerce platform and payment-processing technology used by this store.
You will receive order confirmations and applicable order-status updates using the contact information provided during checkout.
Returns & Product Warranty
Eligible products may be returned within 60 days in accordance with the Return and Refund Policy.
Customers are responsible for return shipping costs unless otherwise required by law or expressly stated in the policy. Returned products must meet the eligibility, condition, packaging, and documentation requirements described in the complete policy.
Fans included in eligible Cocoon kits are covered by a limited six-month replacement warranty, subject to the complete warranty terms, exclusions, and any applicable original-equipment-manufacturer requirements.
The limited fan warranty does not apply to a fan supplied by the customer.
The warranty does not guarantee a particular particle-reduction percentage, air-cleaning result, indoor air-quality result, or health outcome.
Frequently Asked Questions
Will I be charged when I place my preorder?
No. Under the planned preorder process, your order will be reserved and payment will be collected only after you receive advance notice and confirm the order.
When will my order ship?
We are establishing a shipping window currently. If you place an order you
will receive email updates if the estimated schedule changes.
Is checkout handled through Shopify?
Yes. Orders are placed through Shopify’s checkout system. Cocoon Air Quality remains responsible for product information, fulfillment, shipping, customer service, returns, refunds, and applicable warranties.
Is the Cocoon a HEPA air purifier?
No. The Cocoon is not a traditional multi-stage HEPA air purifier. It is a fan-and-fabric-filter system designed to help reduce airborne fine particles indoors.
Was this exact product evaluated by the EPA?
The EPA evaluated the original Cocoon prototype submitted through the Cleaner Indoor Air During Wildfires Challenge. Current commercial products and customer-created setups may use different components or configurations.
Is the Cocoon endorsed by the EPA?
No. EPA recognition of the original Cocoon prototype does not imply endorsement of Cocoon Air Quality, its products, or any commercial product, service, or enterprise.
Does the Cocoon guarantee that it will remove 80% of the particles in my room?
No. The reported performance results came from specific prototype evaluations and testing conditions.
Results in homes and other buildings vary based on the room, pollutants, incoming outdoor air, fan, filter, assembly, placement, operating time, and maintenance.
Is the Cocoon a medical device?
No. The Cocoon is not a medical device and does not diagnose, treat, cure, or prevent a medical condition.
Can I return this product?
Eligible products may be returned within 60 days under the Return and Refund Policy. Customers are responsible for return shipping unless otherwise required by law or expressly stated in the policy.
What warranty applies?
Warranty coverage depends on the product purchased.
Fans included in eligible Cocoon kits are covered by a limited six-month replacement warranty. Customer-supplied fans are not covered. Review the complete warranty for eligibility, exclusions, and return requirements.
Help Us Improve The Cocoon
Air cleaning is a technical subject, and we are committed to making our information as clear, useful, and accurate as possible.
Have a question or suggestion about the website, instructions, product design, or supporting information?