Do you know the difference between carbon monoxide (CO) and carbon dioxide (CO2)? Many people don’t.

Clean Air Allies’ latest fact sheet “CO vs. CO2“ offers a concise 1-page overview of these two very different, but commonly confused, colorless, odorless, tasteless gases.

Paying attention to both CO and CO2 is important to ensure good school indoor air quality (IAQ). But because the concerns they present are different, mixing them up makes it difficult to implement appropriate responses.

The fact sheet is accompanied by “Read More about CO and CO2,” a 1-page list of resources from the EPA, NIOSH, and more.

We’re happy to introduce this fact sheet and resource list during November, which is CO Awareness Month.

Lead Author: JuNelle Harris
Released: November 2025

The Clean Air Allies fact sheet “Why Care about School Indoor Air?“ offers a concise 1-page introduction to:

• indoor air quality (IAQ)
• why IAQ at school matters
• things schools can do to improve IAQ

It is accompanied by “School Indoor Air Quality Resources,” a 1-page list of school IAQ resources from the EPA, CDC, and more. IAQ topics addressed include routine ventilation and filtration, as well as:

• extreme heat resilience
• infection prevention
• wildfire smoke preparedness

Lead Author: JuNelle Harris
Released: August 2025

In 2024, the U.S. Centers for Disease Control and Prevention (CDC) issued guidance for “Preventing Spread of Infections in K-12 Schools.” This important guidance and related materials span numerous webpages.

To increase awareness and assist school leaders, staff, families, and other community partners, Clean Air Allies has prepared a resource summary, “The CDC’s Guidance for Preventing Infections in K-12 Schools to Promote Health, Attendance, and Learning.” It:

• Overviews the CDC’s guidance
• Highlights its indoor air quality (IAQ)-related recommendations

The resource summary aim to synthesize a lot of information in a small amount of space. It includes direct quotations from the CDC’s guidance as well as references and select additional resources.

Lead Authors: JuNelle Harris and Liesl McConchie
Released: December 2025