
Adding fragrance to an air filter is a great way to fill your home with a delightful aroma of your choice. Homemade scented air filters are an easy, inexpensive way to distribute a fresh scent throughout your house. All you need is a clean air filter and some essential oils. You can choose a universally acclaimed scent like citrus or be adventurous and mix oils, such as eucalyptus and peppermint or lavender and lemon.
| Characteristics | Values |
|---|---|
| Air filter type | Furnace or air conditioning |
| Filter material | Cloth |
| Scent type | Essential oils, natural plant extracts |
| Scent application | Apply drops of oil to a clean filter |
| Scent options | Citrus, eucalyptus, peppermint, lavender, lemon, rosemary, etc. |
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What You'll Learn

Using essential oils
To add fragrance to an air filter using essential oils, you'll need to start with a new, clean filter. Air doesn't flow as well through a clogged filter, so you may not be able to smell the oil if you don't use a clean one. You can then add several drops of essential oil to the cloth on the filter. The scents disperse in warm or cool air. You can use fragrant oils like rosemary, lavender, citrus, eucalyptus, peppermint, or lemon. You can also mix oils to create your own unique scent. The aroma in these oils is potent, so it might be best to start with a few droplets first.
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Using natural plant extracts
To make your own scented air filter, start by purchasing a new furnace filter. Air doesn't flow as well through a clogged filter, so you may not be able to smell the oil if you don't use a clean one. You should change your air filter every month, and since your oil will last about 30 days, turning your air filter into an air freshener is a great way to help you remember to change it.
When your furnace or air conditioning system is not running, remove the filter and place several drops of essential oil on its pleats. Take care to reinstall the filter properly so the airflow is going in the proper direction, as per the little arrows on the filter. Once the system kicks on, it will spread the fragrance throughout the house.
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How to apply fragrance to a new filter
To apply fragrance to a new air filter, you will need a few drops of essential oil and a clean air filter. Essential oils produce therapeutic smells that eliminate odours naturally, without compromising the service life or quality of your furnace filter.
Start by purchasing a new furnace filter. You can then pick your scent. You can play it safe by selecting a universally acclaimed scent like citrus or go bold by mixing oils, such as eucalyptus and peppermint or lavender and lemon.
When your furnace or air conditioning system is not running, remove the filter and place several drops of essential oil on its pleats. Take care to reinstall the filter properly so the airflow is going in the proper direction, as per the little arrows on the filter. Once the HVAC system kicks on, it will spread the fragrance throughout the house.
You should change your air filter every month, and since your oil will last about 30 days, turning your air filter into an air freshener is a great way to help you remember to change it.
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How to apply fragrance to an old filter
Although it is recommended to use a new air filter when adding fragrance, it is possible to add fragrance to an old filter. You can use essential oils, natural plant extracts, or fragrant oils like rosemary, lavender, lemon, eucalyptus, peppermint, or any other scent that appeals to you. The aroma in these oils is potent, so it might be best to use a few droplets first. Remove the filter and place several drops of essential oil on its pleats. Take care to reinstall the filter properly so the airflow is going in the proper direction, as per the little arrows on the filter. Once the HVAC system kicks on, it will spread the fragrance throughout the house.
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How much fragrance to use
The amount of fragrance you use depends on how large your system is, how many drops you use, and how long it will last. You should start with a few drops of essential oil and then experiment to find out what works best for you. You can use any scent that appeals to you, such as rosemary, lavender, citrus, eucalyptus, peppermint, or lemon. You can also mix oils to create your own unique scent.
It's important to use a new, clean air filter when adding fragrance. Air doesn't flow as well through a clogged filter, so you may not be able to smell the oil if you don't use a clean one. You should change your air filter every month, and since your oil will last about 30 days, turning your air filter into an air freshener is a great way to help you remember to change it.
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Frequently asked questions
You can add fragrance to an air filter by adding a few drops of essential oil to a clean filter. You can use any scent you like, such as rosemary, lavender, eucalyptus, peppermint, or lemon.
You should change your air filter every month, and since your oil will last about 30 days, adding fragrance to your air filter is a great way to help you remember to change it.
Candles and room sprays can compromise indoor air quality. Using a homemade scented air filter is an easy, inexpensive, and safe way to distribute fresh scent throughout your house without affecting the service life or quality of your furnace filter.











































