To All: We were informed of fume hoods preventative maintenance by Physical Facilities. 1)On *10/06/16* Thursday, they will be performing routine maintenance on third floor fume hoods (Lab #333; Lab #336; Lab #359;Lab #335) 2)On*10/07/16 *Friday, they will be performing routine maintenance on second floor and basement fume hoods (Lab #231; Lab #233/252; Lab #235; Lab #237; Lab # B38) The maintenance will be a few minutes long. Thanks for attention LORRE safety committee