Common Denominator - What is the Common Denominator?


It is simple. We now live in homes that are wrapped in 'saran wrap' and made practically airtight all for the benefit of energy efficiency. 50 Years ago we had radiators, not forced hot air. We had real wood, not particle board furniture and sheathing. Today we have more chemicals and cleaners stored in our homes, which we need to be chemists to understand the labels. Our carpets harbor all kinds of allergens, such as pet dander, dust mites, mold, and pollen. Our homes are incubators with very little ventilation. This environment is a breeding ground for mold. Can energy efficiency and good indoor air quality coexist? Yes. I've packed this website with many tools, information, and solutions.

If you or a family member is being medicated for chronic respiratory illnesses and you want to investigate if your home's environment could be what is aggravating or causing their disease, please contact Michael Shain today at 631-275-5999 or email: You can also visit us at for any home inspection related inquiries. Our goal is to make sure no patient is being medicated to counter the effects of their polluted living environment.


We are located on Long Island, New York, and serve Nassau/Suffolk Counties and Queens.

Why Such a Rise In Asthma Over the Past 30 Years?

Think About This - It's Common Sense

The 1950s



Basic hardwood floors

Mold Testing Company Long Island



Mold Testing Company Long Island

HVAC Duct Systems

Real wood

Mold Testing Company Long Island

Particle Board/ Chemicals

Ventilation rates  >1/hour

mold testing common denominator

Ventilation rates<0.3/hour
Triple Pane Windows
Foam Weather-stripping

More Natural Agents

mold testing common denominator

All Type of Cleaning Chemicals