Re Open Stay Open Reopen and Stay Open The steps to make indoor spaces safely open for business
Air Hygiene is Key
to Fighting Contagions
Aerosolized particles are the problem — we have the solution
Promoting Clean Indoor Air
Strengthens Consumer Confidence
78% say that promoting cleaning and sanitizing will impact likelihood to eat at a restaurant 

Let’s Clear The Air

We are indoor air quality experts who manufacture a comprehensive suite of scientifically proven, innovative products and are dedicated to helping people open their doors again with confidence, from homes and schools to businesses and medical facilities. Right now, everyone has questions and concerns about the air around them. is where you can find answers, request advice and learn more about our research-backed air-cleaning and filtration products.

Step-By-Step Guides

to re-open indoor spaces

Scientific-Based Facts

about reducing the spread of viruses

Personalized Recommendations

on products that can help

Want to assess your indoor hygiene?

Featured Videos

Combatting Virus Spread with Indoor Air Hygiene

Incorporating one or more air purification methods can have a dramatic impact on reducing the spread of infection through the airborne pathways.

How PuraShield 500 can benefit commercial spaces

Researchers believe that virally charged microdroplets from patient zero were carried by the airstreams generated by the air conditioning system.

Explore Topics

Take a closer look at the science behind indoor air hygiene and the solutions that can help you maintain it.

Want to assess your indoor hygiene?

Brought to you by

Filtration Group Indoor Air Quality
Santa Fe
Rapid Engineering
Phoenix Air Systems
airxchange is a free resource brought to you by the thought leaders within Madison Industries. We are dedicated to sharing knowledge about indoor air quality that can help people breathe easy every day.

Our companies specialize in technologies that help deliver clean air for people around the world. Our products work together to purify the air we breathe by removing pollutants, managing humidity, bringing fresh outside air to indoor spaces and cleaning recirculated indoor air. Because every breath matters.