4 ms·
The spread can be bisected into two parts: 1. Droplets directly exhaled. This is the stuff that you mask for. 2. Particles suspended in air. This is why stayi
by megameter 6y ago
The spread can be bisected into two parts:
1. Droplets directly exhaled. This is the stuff that you mask for.
2. Particles suspended in air. This is why staying indoors is particularly dangerous; it tends to hang around and build up without being vented.
The virus dies quickly outside of droplets and in direct sunlight: this is why being outside is low risk given masks and distancing. Either it's coughed on you, or it dies within minutes.
An indoors area that circulates its air quickly is almost as good, provided UV is part of the process. Fans are mostly a good idea in this respect and one could imagine an indoors "UV gate" through which air is pushed to disinfect it. I would not be surprised if the idea already exists.