222 nm?? No way jose. Free radicals don't just stay where you generate them. Even if the UV dose is minimal below a few layers of cells, it doesn't mean that ra

222 nm?? No way jose. Free radicals don't just stay where you generate them. Even if the UV dose is minimal below a few layers of cells, it doesn't mean that radical damage does not reach live epidermal layers. Just using ventilation is a lot safer and has no real downsides.