guardian plus air systems whole house air purifierNuToneWhole House Air Purifiers by NuTone

Broan-NuTone Guardian Plus - for Improving Air Quality

By it's very nature, a new home is susceptible to factors that may result in poor indoor air quality. Off-gassing from new carpets, sealing agents, chemicals, and other elements are part of the problem. Also, over time, dust, pet dander, mold spores, and other allergens can build up. Poor indoor air quality has been blamed for the rise in asthma cases - those who suffer from allergies are especially at risk. A "HEPA Healthy Home" is the best way available to combat these problems. Here's how.

guardianplus guardian plus air purifierThe Guardian Plus Air System keep the air in your entire home clean and healthy. This system eliminates the need for multiple, individual room units and is quiet and out of sight, while creating and maintaining a "HEPA Healthy Home".

Broan-NuTone offers effective solutions to tough indoor air quality problems – the Guardian Plus line of indoor air quality systems.

HEPA Filtration

HEPA filters (High Efficiency Particulate Air) are among the most effective filters available. They capture 99.97% of all particles, even those as small as 0.3 microns. For comparison, a human hair is 150 microns wide. HEPA filters help reduce allergy symptoms, asthma, recurring colds and cough by removing particulates from the air. HEPA filters are so effective they are used in hospital operating rooms. The Guardian Plus Air Systems provide whole house HEPA filtration.


Broan-NuTone GuardianPlus Whole House Air PurifiersProper ventilation is vital for healthy indoor air. Modern homes are “tightly” constructed for energy efficiency. “Leaky” homes have higher air conditioning and heating costs. This tight construction results in lower monthly utility bills but may also result in poor ventilation. In effect, pollutants are trapped within the house. Guardian Plus Air Systems provide a constant source of fresh, filtered outdoor air to provide ventilation for your home. This ventilation exhausts harmful pollutants that are not eliminated by filtration, such as carbon monoxide and other gases. Ventilation also controls excess humidity, especially important during cold seasons.

The Guardian Plus Air System is available in 4 Models

Click the link on the model number below for more information on the specific models.
Guardian Plus GSFH1K
HEPA Filtration Only
Guardian Plus GSVH1K
HEPA Filtration + Fresh Air Ventilation
Guardian Plus GSHH3K
HEPA Filtration + Fresh Air Ventilation
Heat Recovery
Guardian Plus GSEH3K
HEPA Filtration + Fresh Air Ventilation
Energy Recovery

Standard Features

  • True HEPA Filter included with each unit. Two pre-filters included.
  • Up to 2,500 square foot capacity whole house HEPA air purification.
  • Convenient electronic (low voltage) wall mounted control. LED indicates system's operation mode and signals filter maintenance.
  • Installation kit included.
  • 2-year warranty
Guardian Plus Frequently Asked Questions

More Information on Guardian Plus Replacement Filters and Pre-Filters


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