How The Unico System Supports Better Indoor Air
- Audree Grubesic

- Sep 18
- 3 min read
Updated: Sep 22
By: The Unico Systems
As modular construction continues to evolve, so do homeowner expectations-especially when it comes to comfort and indoor air quality. With today’s high-performance modular homes being built tighter and more energy efficient than ever, proper ventilation and air circulation are no longer optional-they’re essential.
But delivering clean, balanced air in a compact modular footprint can be a challenge. Traditional HVAC systems often lack the flexibility to integrate seamlessly with modern ventilation strategies. Their ductwork takes up valuable space, and their operation can lead to inconsistent airflow or poor humidity control-especially in smaller, tighter sealed homes.

The Unico System offers a smarter solution. As a small-duct, high-velocity system, it’s designed not only to fit into tight spaces, but also to deliver superior indoor air quality throughout the home.
With The Unico System, air is circulated more frequently and more evenly. The system reduces humidity levels, eliminates drafts, and helps prevent the stale, stagnant air that can become a problem in airtight construction. It can even be configured to provide 100% fresh outside air when desired. And because it uses smaller, flexible ducts, it minimizes air leakage-supporting better energy efficiency and a cleaner indoor environment.
The Unico System is also equipped with MERV-rated air filters, which help remove dust, pollen, and other airborne particles from circulation. This added layer of filtration improves indoor air quality, reduces allergens, and creates a healthier breathing environment-especially important for homeowners with allergies and sensitivities.
For modular builders looking to meet stricter code requirements or build to Passive House, Net Zero, or IECC standards, The Unico System integrates easily with ventilation systems like ERVs (Energy Recovery Ventilators) and HRVs (Heat Recovery Ventilators). This gives you greater flexibility in design while ensuring homeowner’s benefits from filtered, conditioned, and properly balanced air in every room.
And just like with installation, we’re here to support your team every step of the way. Whether your project includes advanced IAQ requirements or you’re just beginning to explore healthier home options, our design, training, and customer service support teams are here to help make it all work-without compromising the design or layout of your modular builds.
Homeowners may not see the air they breathe-but they’ll feel the difference in a home equipped with The Unico System. From consistent temperatures to reduced allergens and better humidity control, it’s HVAC that quietly does more than just heat and cool.

Interested in learning how The Unico System can improve indoor air quality in your modular projects?
FAQ's
What are the benefits of a small-duct HVAC system? A small-duct HVAC system is ideal for tight spaces, offering benefits like superior air circulation, better humidity control, and the ability to integrate into existing structures without extensive renovation.
How can I improve the indoor air quality of my home? You can improve indoor air quality by ensuring proper ventilation, using high-efficiency MERV-rated air filters to remove airborne particles, and controlling humidity to prevent mold and mildew growth.
What is a high-performance home? A high-performance home is a dwelling designed and built to exceed standard building codes. It prioritizes a tight thermal envelope, superior energy efficiency, and advanced systems to provide a comfortable and durable living environment.
Are modular homes energy-efficient? Yes, modular homes are often more energy-efficient than traditional builds. Their factory-controlled construction allows for tighter seals and better insulation, which reduces air leakage and lowers energy consumption for heating and cooling.
How do Energy Recovery Ventilators (ERVs) work with an HVAC system? An ERV works with an HVAC system by exchanging stale indoor air with fresh outdoor air. It transfers heat and moisture between the two airstreams to pre-condition the incoming air, reducing the workload on the HVAC system and improving energy efficiency.




Comments