Testing the Filtration Efficiency of Various Face Masks

When exiting the mouth of an infected individual, the virus latches onto particulates of various sizes in the air.

• When exiting the mouth of an infected individual, the virus latches onto particulates of various sizes in the air.

It is more difficult for masks to catch smaller particulates hence, the importance of efficiency ratings.

• It is more difficult for masks to catch smaller particulates hence, the importance of efficiency ratings.

Used a PurpleAir Sensor to measure the particulates.

Air Compressor for the "simulated" breathing

3 different masks: Surgical, fabric, N95

Psurgical = 0.9473

PN95 = 0.0255 ❌ Reject Ho

PCloth = 0.2415

Test 2, Ho: Population mean concentration (μu)≤Proposed mean concentration (μo)

HA: Population mean concentration (μu) > Proposed mean concentration (μo)

PN95 = 0.0127 ❌ Reject Ho

Psurgical = 0.9473