Which Air Filter Removes the Most Particles from the Air?

Overview

Objectives/Goals The object is to determine if high efficiency air filters (HEPA filters) really catch more air particles then a standard air filter. I believed that the high efficiency would perferm better than the standard air filter. Methods/Materials In my project I used two types of air filters, a High efficiency (HEPA) filter and a standard filter. I cut the two filters in half and measured their weight. I then taped the two different filters together with packing tape and place those newly constructed filters into to separate air vents in my home. After 30 days they were removed, taken apart, and weighed again for the results. Results The high efficiency filter from both vents did weigh more then the standard filter. However, the difference was not a lot. Since the difference was not that big, it makes me question if paying the price for the high efficiency is really worth the money. Conclusions/Discussion My conclusion is that while a high efficiency air filter does hold more air particles, I would have to advise people that unless you needed it for medical reasons, such as asthma and allergies, buying the standard filter is almost just as good and will save you some money.

Competition history

• CSEF 2013 Product Science (Physical) (Junior Division Only) · Entry J2126

Resources

• CSEF project summary ↗

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