INDOOR AIR QUALITY
Comprehensive
Indoor air is more complex than most homes are designed for.
Healthy indoor air doesn’t come from a single device.
It comes from systems working together to purify, circulate, refresh, and monitor the air throughout your home.

The 4 Core Air Quality Layers
A comprehensive indoor air system addresses, at minimum, four fundamental air functions:
cleaning the air, moving it properly, bringing in fresh air, and understanding what’s happening in the air.
Purify
Reduce airborne pollutants, odors, and contaminants circulating through the home.
Circulate
Ensure air moves evenly so cleaner air reaches every room.
Refresh
Introduce controlled outdoor air to replace stale indoor air trapped inside modern homes.
Monitor
Track indoor air conditions like CO₂ and VOC levels so changes in air quality don’t go unnoticed.
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Building a Complete Indoor Air Environment
Many homes rely on a single solution, like a filter or air purifier.
But indoor air quality depends on several factors working together.
If even one of these layers is missing, the air in the home can become stale, uneven, or uncomfortable.
Indoor air quality is influenced by several factors, including:
• pollutants in the air
• stale indoor air
• uneven circulation
• invisible air quality changes
The most effective approach is a layered air system that addresses each of these challenges together.
That’s why we developed PuriGuard Fresh.
COMPREHENSIVE
A Layered Whole-Home Air Quality System

Rather than relying on a single device, PuriGuard Fresh improves indoor air by addressing all four air quality functions together.
Every home is different, so the system is configured based on the home’s airflow, ventilation, and air quality conditions.
Proven Air Purification Technology
The purification layer of PuriGuard Fresh uses RGF Environmental Group’s PHI technology, a well-established air purification system, integrated directly into the HVAC system.
RGF’s PHI technology has been independently tested for its ability to reduce airborne pollutants, odors, and microbial contaminants throughout indoor environments. Click here to see Test Results
