While wearing no mask (a control), one participant released about 960 droplets.
The amounts of droplets varied — some speakers only released 200.
Other studies suggest that 1 minute of speaking can release over 1,000 droplets.
Key to understanding this result is knowing that they found wearing a gaiter to be "counterproductive" in this experiment on just one person. More robust research is needed to make any conclusions about this type of mask.