Air purifiers for the COVID-19 Virus?Air purifiers with HEPA filters like Smart Air's can filter the COVID-19 coronavirus. Learn how HEPA air purifiers filter viruses.
What is activated carbon?
HEPA filters are designed to capture particles like the small PM 2.5 particles. Activated carbon, though, captures odors and gases like volatile organic compounds (VOCs). VOC is a big category and includes harmful carcinogens like formaldehyde and benzene.
Does everyone need a carbon filter?
Not necessarily. Not all homes have dangerous levels of harmful gases or VOCs that would call for a carbon filter. VOCs are more common in homes:
- with recent home renovation or repainting
- with smoke or other offensive odors
- near a source of gas pollution like a factory
If you have inflammation or asthma symptoms, you may also consider using a carbon filter.
Purifier companies have a financial incentive to convince people to buy carbon filters. They make more money if they can scare people into buying carbon. We won’t do that. Check the facts and data first before spending your money.
Do I still need a HEPA and a Carbon?
Yes. Activated carbon is not very effective at filtering particulate pollution, the primary pollutant affecting cities in China. For that, a HEPA is still the best choice.
Not sure if you have a VOC problem?
You can run a “poor man’s VOC test” by sniffing the air where you air. If you can smell any plastics smells or the kind of smells you get in a new car, off paint, or from new furniture, you may well have a VOC issue.