From Maine Indoor Air Quality Council

Practical Building Recommendations to Reduce Virus Transmission
Updated 11/23/2020
Prepared by Kristofer G. Anderson, P.E., Bath, ME

Manage Your Home to Prevent COVID-19 (Written by Executive Director Christine Crocker for Green & Healthy Maine Homes Magazine)

The SAFEAIRSPACES COVID-19 Aerosol Relative Risk Estimator

Use your parameters for # of occupants, floor space/height, ventilation rate, filtration rate, time indoors, and use of masks to determine transmission risk.


ASHRAE Position Document on Airborne Infectious Disease

Guidance for Building Operations During the COVID-19 Pandemic

ASHRAE Epidemic Task Force (Schools & Universities)

COVID-19 Response Resources


Reopening Guidance for Schools (K-12)

From Schools for Health

5 Step Guide to Checking Ventilation Rates in Classrooms

From Educational Plant Maintenance Association

EPMA HVAC Resources

From U.S. Environmental Protection Agency

On-Demand Webinars: Healthy Indoor Environments in Schools: Plans, Practices and Principles for Maintaining Healthy Learning Environments

Indoor Air and Coronavirus (COVID-19)

Air Cleaners and Air Filters in the Home

From Harvard School of Public Health and Colorado University (Boulder)

Portable Air Cleaner Calculator for Schools

NIST (National Institute of Standards and Technology

A web-based tool called FaTIMA:  Fate and Transport of Indoor Microbiological Aerosols

From Federation of European Heating, Ventilation, and Air Conditioning Associations

How to Operate and Use Building Services to Prevent the Spread of COVID-19


Guidance on Preparing Workplaces for COVID-19

OSHA ALERT to Prevent Worker Exposure

March 9, 2020 – OSHA News Release
U.S. Department of Labor Offers Guidance For Preparing Workplaces for Coronavirus | Occupational Safety and Health Administration

March 14, 2020 – OSHA National News Release
U.S. Department of Labor Issues Temporary Enforcement Guidance for Respirator Fit-Testing in Healthcare during COVID-19 Outbreak

From ResearchGate

MERV Filter Models for AeroBiological Applications

From Centers for Disease Control and Prevention

Environmental Cleaning & Disinfection Recommendations

People with Asthma and COVID-19

From Colorado State University

Cloth Mask Performance

From Johns Hopkins University

Active Map for COVID-19

From New England Journal of Medicine:

Updates, resources for viruses on surfaces

From Retrotec

HVAC and COVID19: An Education on the Indoor Air/Virus Relationship


HealthWeather Map:

The Power of Social Distancing

Corona Virus Vs. the Flu

Other Interesting Reading:

Take Care of Your Lungs During Pandemic: