# black light safety

**URL:** https://boards.straightdope.com/t/black-light-safety/173298
**Category:** Factual Questions
**Created:** [May 6, 2003, 12:37am UTC](https://boards.straightdope.com/t/black-light-safety/173298 "2003-05-06T00:37:27Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![JKB](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@JKB](https://boards.straightdope.com/u/JKB)
#### Post date: [May 6, 2003, 12:37am UTC](https://boards.straightdope.com/t/black-light-safety/173298/1 "2003-05-06T00:37:27Z")

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Do blacklights pose any longterm danger to people? I’m considering adding a fixture to one of my rooms (I never said I had class) but I’m afraid I could be damaging my skin/eyes.  
The warning labels have the typical “duh” warnings (don’t touch the hot bulb, don’t take a shower with it) but nothing about long term damage. What’s the scoop?

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### Author: ![Q.E.D](https://avatars.discourse-cdn.com/v4/letter/q/51bf81/32.png) [@Q.E.D](https://boards.straightdope.com/u/Q.E.D)
#### Post date: [May 6, 2003, 12:42am UTC](https://boards.straightdope.com/t/black-light-safety/173298/2 "2003-05-06T00:42:06Z")

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AFAIK, blacklight bulbs emit primarily longwave UV A in addition to some visible violet light, which is generally safe, although long-term continuous exposure may result in a _slightly_ elevated risk of corneal cataracts and skin cancer. Though nothing even close to the level of risk with shorter UV B and C.
