Our original inspiration was to create a device that could help combat the spread of the SARS-CoV-2. We saw that many people were getting infected and dying do COVID19, a disease that SARS-CoV-2 causes. Additionally, We wanted to create a device that is similar in size to other respirator filters but included a variety of features to enable the user to have more knowledge of the air they are breathing. Los Angeles is sadly well known for its smog. We all know that breathing in smog on a daily basis is not good for you or those around you. We wanted to create a way to quantify the smog and other airborne compounds. Allowing the user to know when they are in a dangerous environment or even when they come out of that dangerous environment.

What it does

In short, we built a chemical and biological protection mask that combines a filter with UV LEDs, gas sensors, and a particle sensor to get a clear picture of the user's environment. We also created a smaller version of an ion trap to enable us to capture polarized airborne particulate. This happens after particle filter so the traps just captures the particulate that is small enough to go through the particle filters. In addition to the filter and trap, we have a sensor suite that enables us to sense the VOC concentration, carbon monoxide, humidity, temperature, pm1 concentration, and pm2.5 concentration. To get the air quality of LA, we drove around the city to gather the data points at various locations. We even gathered the geolocation of the measurements via a smartphone that was giving the device it's connectivity.

We also built a dashboard

How I built it

Challenges I ran into

Accomplishments that I'm proud of

What I learned

What's next for FreshAir

We hope to build.


Viruses are charged UV kills viruses PM1 detect coronavirus Coronavirus in water droplets.

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