Indoor air pollution is about ten times worse than outdoor pollution. On average, Canadians spend up to 90 percent of their time indoors, which makes indoor air filters a key factor in maintaining health. If your home is sealed and insulated in the name of energy efficiency, literally thousands of contaminants can become bottled up inside. Fortunately, there are ways to clean your indoor air. HEPA filters are a popular option due to their ability to trap 99.97 percent of particles.
What Are HEPA Air Filters?
High Efficiency Particulate Arrestance (HEPA) filters were originally created for military purposes, and quickly became popular in biomechanical settings for their high efficiency. There are even models of medical grade breathing masks that employ HEPA filters. They are now common in businesses, residences and even appliances such as vacuum cleaners. Their highly efficient design makes them capable of capturing particles as small as .3 microns. This includes particles much smaller than your eye can see, such as:
- Pollen
- Dust
- Dust mites
- Mould spores
- Pet dander
- Allergens
- Pollutants from household cleaners
HEPA vs. Regular Air Filters
HEPA air filters have more “pleats per inch” than regular filters. This gives them a greater amount of surface area. HEPA material is made of a highly specialized fiberglass weave, which is woven haphazardly to create a dense tangle of fibrous matting that traps particles.
HEPA filters function differently from their regular counterparts because they don’t work like a “sieve.” They capture particles in three different ways, using three different stages of filtration:
– Pre-filtration captures larger particles, such as dust
– HEPA filtration removes 99.97 percent of particles .3 microns and larger
– Volatile Organic Compound (VOC) filtration removes odours and fumes.
Since HEPA filters are so efficient, they can sometimes restrict air flow in your HVAC system. Most systems are compatible, but it’s a good idea to have your system evaluated for compatibility before installing one.
If you would like more information on whether a HEPA air filter could be right for your home, call Custom Comfort. We’re happy to increase your comfort and indoor air quality!
FAQ
- What distinguishes HEPA filters from regular air filters?
HEPA filters have a denser weave and more pleats, capturing 99.97% of particles as small as 0.3 microns, while regular filters only trap larger particles
- Do HEPA filters remove household odors?
HEPA filters trap fine particles but don’t remove odors. Some HEPA filters have additional VOC filtration to remove odors and fumes.
- Will a HEPA filter improve the performance of an HVAC system?
HEPA filters can improve air quality but may reduce airflow in some HVAC systems. Check compatibility before installation.
- Do I really need HEPA filters if my home is not allergic or suffers from respiratory conditions?
HEPA filters aren’t necessary but benefit any home by removing dust, pollen, and pollutants, resulting in cleaner air and surfaces.
- How do I know if my home needs a HEPA filter?
HEPA filters are especially beneficial for allergy or asthma sufferers, pet owners, and those in highly polluted areas. Consult an HVAC professional for personalized advice.