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    An open source global directory of businesses, schools, medical providers, restaurants, and other facilities committed to addressing airborne diseases and global health challenges.

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    AIRWISE

    Airflow Infection Risk With Innovative Simulation Engine

    An interactive, science-based simulation tool that visualizes airborne particle dispersal, airflow complexity, and infection risk across real-world environments.

    Learn More

    We have a number of other projects in process and intend to publish soon involving educational toolkits for schools, community centers, repurposable widgets, and others. 

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Newsletter: November 2025

Newsletter: November 2025

PHAN November 2025 Newsletter Greetings, public health PHANs! Welcome to the November 2025 newsletter, and
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News weekly update: Nov 21st 2025

News weekly update: Nov 21st 2025

PHAN Weekly News Update for November 21, 2025 Greetings, public health PHANs! This is our
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News weekly update: Nov 21st 2025

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Public Health Action Network
  • COVID/Long COVID

    Understanding COVID-19

    • How COVID Spreads
    • COVID-19 Is Not the Flu
    • Why COVID Still Matters
    • Economic Impact

    Vaccines & Research

    • Vaccine Information & Myths
    • COVID-19 Vaccine Types
    • Research Search

    Prevent & Respond

    • Simple Precautions
    • COVID-19 Testing
    • COVID-19 Treatments
    • PlusLife NAAT Testing

    Masks & Respirators

    • Why Well-Fitting Masks Matter
    • Choosing the Right Mask
    • Global Respirator Standards

    Long COVID

    • Overview
    • Long COVID in Children
    • Immune System Effects
    • POTS
    • ME/CFS
    • Neurological Effects
    • Cardiovascular Effects

    Community & Support

    • Living with Long COVID Stories
    • Online COVID-Aware Communities
    • Mask Blocs
    • Long COVID/PASC Clinics
    • Clinical Trials
    • Mayo Clinic Support Forum
    • Long COVID Alliance
    • NIH RECOVER
    • Patient-Led Research Collaborative
  • Clean Air

    The Basics

    • Why It's A Right
    • Planes, Trains, and Subway...mobiles.
    • How it Impacts You
    • Wildfire & Emissions
    • Economic Impact

    Purifiers

    • CR Boxes
    • Most Cost Effective
    • CADR

    HVAC

    • All About HVAC
    • Research

    Resources

    Air Quality Index

    Check your local AQI

    CADR Calculator

    Find your ideal Air Exchange Rate

    Filter Guide

    From MERV to HEPA - what does it all mean?

    DIY Air Purifiers and Impacts

    Overview

    How to Build your own DIY Air Purifier for Cleaner Air.

  • Projects
    SAFER

    SAFER

    Safe Access to Facilities and Essential Resources

    An open source global directory of businesses, schools, medical providers, restaurants, and other facilities committed to addressing airborne diseases and global health challenges.

    Learn More
    CARE

    CARE for Long COVID

    Conversational AI for Research and Engagement

    Tailored connections to clinical trials, specialists, and verified therapies, while leveraging both anecdotal experiences and scientific data for Long COVID using a cutting-edge conversational AI platform.

    Learn More
    SUPPLY

    SUPPLY

    Helping supplies move to the people who need them

    SUPPLY helps donors, community groups, and staff see what is available, where it is stored, and where it should go next.

    Learn More
    AIRWISE

    AIRWISE

    Airflow Infection Risk With Innovative Simulation Engine

    An interactive, science-based simulation tool that visualizes airborne particle dispersal, airflow complexity, and infection risk across real-world environments.

    Learn More

    We have a number of other projects in process and intend to publish soon involving educational toolkits for schools, community centers, repurposable widgets, and others. 

    All of our projects are open-source, open-data, and open-science. Check back at our github for updates.

  • About

    Our Company

    • Our Mission
    • Core Values
    • Our Board
    • The Team
    • Advisors/Partners
    Listen to Breathe This
    Apple PodcastsSpotifyYouTube

    Public Transparency & Info

    • 501c3 IRS Approval
    • Program One Pager
    • Roadmap One Pager
    • Press Kit
    • Request for Proposals
    • 2025 Annual Report
    • Contact Us

    Press and PSAs

  • News

    Blog

    Traveling COVID-safely in a not-COVID-safe world

    Disappearing Act: Ellie’s Long COVID story

    US residents: CALL YOUR SENATORS Restore NIH funding and jobs Tell them to reverse the cuts to NIH funding that pays for vital research. Use the 5Calls app!

    Call your senators about restoring NIH jobs & funding!

    Read More…

    Zoom Conversations

    Loading videos...

    See More…

    Upcoming Events

    All Events…

    Newsletters

    October 9, 2026

    October 2, 2026

    September 25, 2026

    September 18, 2026

    September 11, 2026

    September 4, 2026

    Read More…

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