Unveiling the Corsi-Rosenthal Box: An Effective Solution for Virus Reduction
In this comprehensive guide, we introduce the Corsi-Rosenthal box, a remarkable device designed to significantly reduce airborne viruses. Created by Dean Richard L. Corsi, this do-it-yourself solution offers pet owners and allergy sufferers an affordable alternative to expensive air cleaners, providing cleaner air for you and your beloved pets. Join us as we delve into the construction process, highlighting the role of science in enhancing the air quality within your home.
Required Materials: Gathering the Ingredients
To begin building your Corsi-Rosenthal box, ensure you have the following materials at hand:
- 4 two-inch MERV 13 filters
- 20-inch box fan
- Cardboard from box fan packaging or similar material
- Ample duct tape
- Scissors
- Corsi-Rosenthal Box User Guide (available below in English and Spanish):
Step-by-Step Guide: Constructing Your Corsi-Rosenthal Box
Step 1: Gathering your Ingredients
Before diving into the construction process, gather all the essential components. Organize the four MERV 13 filters, the box fan, the box fan packaging, duct tape, scissors, and the Corsi-Rosenthal Box User Guide.
Step 2: Building the Shell
The initial phase involves assembling the shell of your Corsi-Rosenthal box. Connect the four filters vertically, aligning the airflow arrows to ensure a consistent flow direction. Seal the seams between the filters securely using duct tape.
Step 3: Installing the Floor
Create a sturdy floor for your Corsi-Rosenthal box using the cardboard from the box fan packaging. Position the box shell over the cardboard, ensuring comprehensive coverage of the bottom surface. Secure the cardboard to the box shell using duct tape, reinforcing the structure’s stability.
Step 4: Installing the Box Fan
Now, install the box fan, which facilitates airflow through the filters. Ensure a tight seal around the edges to minimize air leakage. Address any gaps between the filters and the fan by using small pieces of cardboard and duct tape. Seal all seams around the box fan and filters to maintain optimal airflow.
Embracing the Power of Science: Witnessing the Corsi-Rosenthal Box in Action

Step 5: Admiring your New Corsi-Rosenthal Box
Witness the transformative capabilities of your newly built Corsi-Rosenthal box. When combined with a suitable fan, this device can deliver an airflow of 600 to 800 cubic feet per minute. With material costs totaling approximately $65, the Corsi-Rosenthal box offers a cost-effective alternative to high-end HEPA air cleaners while providing superior virus reduction. Experience the remarkable effectiveness of this DIY solution in various settings, such as your living spaces, bedrooms, or even your pet’s area.
By constructing your own Corsi-Rosenthal box, you take a proactive step towards reducing airborne viruses and allergens, creating a healthier environment for both you and your pets. Embrace the power of innovation and regain control over the air you and your furry companions breathe. Start building your Corsi-Rosenthal box today and enjoy the benefits of cleaner, fresher air.
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