Indoor air quality
Air purification and whole-home humidifiers that remove pollutants and keep winter humidity at a healthy level.
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Guides for homeowners
Furnace Filter MERV Ratings Explained
A MERV rating tells you how well a furnace filter captures particles of different sizes. This guide explains the scale, what the EPA recommends, and how to pick a filter your furnace can handle.
Read the guide →
Ideal Indoor Humidity in a Minnesota Winter
In a Minnesota winter, the right indoor humidity depends on how cold it is outside. This guide explains the ranges to aim for, why your windows tell you when it is too high, and how to adjust your humidifier.
Read the guide →Whole-Home Air Purification Options Compared
Media filters, UV lights and electronic air cleaners all install on your furnace, but they do different jobs. This guide explains what each one removes, its limits, and why the EPA warns against devices that produce ozone.
Read the guide →Whole-Home vs. Portable Humidifier: Which to Choose
A portable humidifier adds moisture to one room. A whole-home humidifier works with your furnace to treat the entire house. This guide compares coverage, upkeep, control and cost factors so you can decide.
Read the guide →Need service now?
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