High-Efficiency Particulate Air (HEPA) filter is commonly used in applications where contamination control is required, such as medical devices, food & beverage, and pharmaceutical products. It is essential equipment to capture bacteria, pollen, dust mites, mold, and other microscopic substances.
However, over time, the HEPA filter and its media elements need to be changed to ensure vacuum functions at a great capacity and trap even the smallest particles effectively. If you want to get rid of allergens, look for a HEPA filter supplier to improve the air quality of your settings and make the right selection.
Read on to learn more about HEPA filters and when to change them for enhanced air quality.
What is a HEPA Filter?
HEPA is a kind of mechanical filter that has the ability to trap up to 99.97% of hazardous airborne particles as small as 0.3 microns. They are mainly used in research, industrial facilities, hospitals, commercial and residential properties due to increased concern for good-quality, fresh air. You can find HEPA filters in various household appliances, such as air purifiers, HVAC systems, and vacuum cleaners.
How does HEPA Filter Work?
It works by driving air into its filtration mechanism, trapping airborne particles like mold, pet dander, pollen, dust mites, virus, and bacteria, and then releasing clean air out. As it has a quite narrow opening, contaminants passing through get stuck on the fiber with methods, including direct impaction, diffusion, sieving, and an interception.
It is equipped with a pre-filter that can help trap large particles like dust and an activated carbon filter that eliminates smoke, odors, and corrosive gases.
When does HEPA Filter need to be Changed?
When used in residential settings:
If you’re using a vacuum with a HEPA filter in a residential area, the filter would last around 2-3 years. However, it depends on how often do you use it, but regular usage based on the average cleaning schedule will keep it running for 24 to 36 months.
When used in commercial settings:
The filter needs to be replaced more often than once every 2-3 years. If you use it in a workspace on a regular basis, make sure to check the filter every 6 months. If it looks dirty and damaged, it should be changed as soon as possible. If not, the HEPA filter needs to be changed once a year when used in the commercial area.
If you notice a musty smell:
If you continue to use a vacuum and witness a musty smell, there is a chance that your HEPA filter will no longer work effectively and needs immediate replacement. The smell may be a sign that replacement is required.
For an additional layer of filtration, many use carbon pre-filter to remove odors in the air. Similar to HEPA filters, carbon filters need to be changed on an annual basis (commercial settings) and once every 2-3 years (residential settings).
You might have understood by now that HEPA filters have a remarkable potential to remove microscopic particles, release fresh, breathable air, and maintain the cleanliness of your home. Keep the above-listed tips in mind to determine when it’s time to change the filter.
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