Event box

Clean Air Day: Build Your Own Air Purifier (Masks Required) In-Person

Date:
Sunday, December 7, 2025
Time:
11:00 am - 12:30 pm, Eastern Time - US & Canada (change)
Location:
Alvin Sherman Library: First Floor, Program Room 1017
Audience:
  Adults  
Categories:
In-Person  
Registration has closed.

About the Event

"It's just a filter and a fan." 

- Jim Rosenthal 

A day of education and budget-friendly ways to clean the air in your home or classroom. Join us as we learn about the effect and importance of clean air and how we can build our own low-cost air purifier with everyday materials: a Corsi-Rosenthal (CR) Box! A building demonstration will be held during the session.  

While everyone is welcome to attend and participate, free CR box materials will be provided to the first eight registered teachers who present a valid school or county ID. 

Masks are required for entry to this event and will be provided at the door. 

Materials generously provided by the Corsi-Rosenthal Foundation.


Direction to the Alvin Sherman Library