Virus particles don't float around separately, they are carried by droplets which are large enough to be blocked by the masks commonly in use. Once the droplet carrying the virus hits the mask, the virus particles don't float off the droplet.
No... There has to be a distinction made between the common thought of 'droplets' and aerosolized water which the viruse lives in fine, and the mask does nothing to prevent.
You can prove this to yourself by exhaling through a mask with your reading glasses positioned in front of it... The glasses will fog up with moisture... That is those 'droplets' you are speaking of that actually suspend and carry in the air.
Your mask is doing nothing as soon as your exhalation makes it wet. The only advantage to a surgical mask it its attractive static charge. After a few minutes, when your exhalation has moistned the mask sufficiently, the static charge disappears, and all you are doing is creating a near-body temp moist environment where the virus can propagate right in front of your face.