4 ms·
Depending on the intensity of light you have and the wattage is the bulb, 7 mins is way too long. If your bulb is very close to the mask 10 seconds is more than
by remote_phone 7y ago
Depending on the intensity of light you have and the wattage is the bulb, 7 mins is way too long. If your bulb is very close to the mask 10 seconds is more than enough.
- koolba 7y agoCan I disinfect other things like mail or a cardboard box with a UV light? Alternatively, would leaving things under the sun have a similar effect and, if so, how long would it take?
- throwaway2048 7y agoUV-C is basically entirely blocked by the ozone layer and doesn't reach the surface of the earth. Its extremely dangerous, and can cause eye and skin damage with under 60 seconds of exposure, it is absolutely something you do not want to be anywhere around when active.
- nfpfish 7y agoUVC is safest actually. Short wavelength is absorbed by dead skin cells. Never gets to live.
- dheera 7y agoIs there a good reference on how to calculate the time based on the wattage W and distance of the bulb D?