Indoor Air Quality & Ventilation

Indoor air quality problems often show up as stuffy bedrooms, window condensation, musty odors, persistent dust, allergy symptoms, cooking particles, or wildfire smoke. The right response depends on what is causing the problem.

Green Spirit looks at ventilation, humidity, filtration, combustion equipment, air leakage, and the HVAC system together before recommending a solution.

Indoor Air Quality and Ventilation Solutions

Whole-Home Ventilation

Energy recovery ventilators (ERVs) and heat recovery ventilators (HRVs) bring in outdoor air, exhaust stale indoor air, and recover much of the energy from the outgoing air. Green Spirit designs these systems around the home's layout, occupancy, air tightness, and HVAC equipment.

Bathroom and Local Exhaust

Quiet, properly ducted bathroom fans remove moisture at the source. Green Spirit can evaluate airflow, controls, duct routing, and whether existing fans actually vent outdoors.

Filtration and Air Purification

High-efficiency media filters and compatible air-cleaning equipment can reduce dust, allergens, fine particles, and smoke. Equipment is selected around airflow and pressure limits so it does not undermine HVAC performance.

Humidity Control

Dry winter air, damp basements, and summer humidity can each require a different approach. Solutions may include source control, ventilation changes, dehumidification, humidification, drainage, or envelope work.

Common Problems Green Spirit Helps Investigate

• Excess humidity, condensation, and mold concerns
• Stuffy rooms and inadequate fresh air
• Dust, pollen, pet allergens, and cooking particles
• Wildfire smoke and other outdoor air concerns
• Odors and volatile organic compounds from materials or household products
• Combustion safety concerns involving fuel-burning equipment

Radon requires testing and specialized mitigation when elevated. Minnesota homeowners can learn more from the Minnesota Department of Health.

Part of Home Performance

Air quality can change after insulation and air sealing, a new HVAC system, or remodeling. Green Spirit checks how those changes affect ventilation, moisture, filtration, and airflow.