Laser safety help!

[d0rkster]

I bought these lasers from ebay. Green&Red Laser Studio Laser Stage Lighting Club Party on eBay.ca (item 130478253434 end time 23-Jan-11 13:46:46 EST)

I am hosting a party with these lights but I am not sure if they will be safe if I point it towards us. It is labeled Class III B. Should I be worried if people took a glance at the light directly for a second by accident or it should be fine? The laser would be about 2 meters in height and 2 meters in length away from us.

 

[mindwaave]

Before I built my own version of this "projector", I had the same thing. The beams are powerful enough to cause eye damage if people stare into the beams, so make sure that they continuously move (there is a dial on the back that sets the speed). This way, if a beam goes into someone's eye, it shouldn't do any damage.