How to Clean Germguardian Filter + HEPA Filter Replacement Guide

Particulate air filters work best when they are clean or new. Once clogged, the filters will not effectively capture polluting particles found in the air. When saturated filters also release back into the air most of the trapped allergens like dust, pollen, and mold spores. This will not be good to your health.

Gemguardian technologies offers some of the best air filtration systems that uses activated carbon pre-filter and HEPA filters. Although known to be highly effective in trapping even the smallest particles, these filters require proper cleaning and timely replacement to enhance product efficiency and quality of the indoor air in your home.

Germguardian air filter

Are Germguardian filters washable?

HVAC systems come with either washable or permanent air filters which is usually indicated on the product label. Washable filters can be removed and get rinsed to remove dirt and debris trapped in the mesh fibers. Once completely dry, the filters are then fitted back into the unit for reusing.

Permanent filters on the other hand can only be replaced once they get clogged or damaged. How to do it is clearly illustrated in the product manual. Removing and cleaning of non-washable HEPA filters will damage the mesh fibers and any gap will allow particles to pass through.

Germguardian HEPA air purifiers feature a pre-filter part comprising of activated charcoal layer that traps large particles and removes strong smells and odors from the air. This portion can be cleaned by a brush attachment on your vacuum. Non-washable HEPA filters on the other hand should be replaced when they become clogged.

How do you clean germguardian filter?

Permanent HEPA filters are designed not to be cleaned for reuse, they are only replaced when they get clogged or damaged. However, if you have to clean, use a vacuum cleaner to suck away dust and debris from the surface of the filter. If you have to remove the filter from the unit before cleaning, unplug your air purifier, take it to a cleaning area and remove the filter as directed in the user manual.

A washable filter should be cleaned by hosing or rinsing it under cold water. When removing the filter from the unit and during cleaning be careful not to touch the fiber material. Wash gently and allow the filter to completely dry before reinstalling it.

When should I change my Germguardian filter?

Whether permanent or washable, air filters ought to be changed when they expire. Most manufacturers will advise when this should be done. Cleaning and replacing of filters depend on how often you use them.


Pre-filters capture large particles from the air before it passes through to the main filter. Germguardian HEPA filtration systems include an activated carbon pre-filter which also remove odors in the air. Pre-filters is a very important section that increases the efficiency and lifespan of the main filter.

Pre-filters get dirty or clogged faster as compared to the rest of the filters. If the pre-filter is not disposable, clean it regularly as guided by the manufacturer. Otherwise replace your pre-filters after every two to three years for residential use and annually for commercial use. Carbon pre-filters should be replaced after every 3 to 6 months depending on air quality.

HEPA Filters

These are the primary filters in most filtration systems. You will find them in air best air purifiers, vacuum cleaners and cars. HEPA filters trap medium sized to small particles in air including dust mites, some virus and bacteria.

HEPA filters are expensive to replace but experts warn against washing and reusing them. While the replacing rule for every model varies, HEPA filters should be changed at least once in every six months. This period can change depending on air quality. In a commercial setting, the filter should be changed more often.

Germguardian recommends replacing filters when they look soiled, that is, the color has changed from white to grey or black. Filters that smell musty should also be replaced immediately as this is usually a sign of mold. If you get it difficult replacing your filters you can opt for an air purifier with washable filters.

Low-cost ways of improving indoor air quality

Regular replacement of filters is an expensive affair which can be avoided by venturing into low-cost options of improving your home’s indoor air quality. Common polluting particulate matters in your home include:

  • Allergens such as dust, pollen, mold and pet dander
  • Micro-organisms such as viruses, bacteria, and dust mites
  • Smell and odors from garbage, paints and adhesives
  • Combustion byproducts such as fumes and smoke

After understanding the type of pollutant wrecking your air quality, here are important steps for a clean indoor air in your home:

1. Properly clean your house

Cleaning your home on a regular basis will reduce the amount of allergens and dangerous microorganisms in the air. Vacuum your carpet, rugs and upholstery weekly with a vacuum cleaner equipped with HEPA filter. Wash your beddings, clothes, drapes and other fabrics that may attract allergens.

2. Create more ventilation

Allowing in fresh air from outside will reduce the amount of contaminating particles in your indoor air. Open windows when the weather is calm to allow fresh air in your home. Installing fan in the kitchen can help in enhancing air circulation thus minimizing potential allergens in air such as fumes and smoke.

3. Keep away houseplants

Indoor greenery is pretty but can foster the collection of allergens and mold in your home. There are very few plants that will purify air but not through trapping of allergens.

4. Clean your air vents

A lot of dust and other allergens can collect around your air vent. This will result into unhealthy indoor air in your home. Regularly check and get rid of the dust around your air vents to improve indoor air quality and also prevent growth of mold in the vent.

5. Change your HVAC filters regularly

If you have a combined heating, ventilation, and air-conditioning system in your home, clean the filters regularly or replace them as needed. This will prevent your system from blowing back the trapped particles into the air in your home.


Is my filter washable – Guardian technologies

Easy ways you can improve indoor air quality – Harvard Medical School Publication

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