Re-using the polyurethane female condom is not considered as safe as using a new one; however, the WHO says, Batches of new, unused female condoms were subjected to seven cycles of disinfection, washing, drying and re-lubrication, reflecting the steps and procedures in the draft protocol, but at considerably higher concentrations of bleach and for longer durations. All female condom batches met the manufacturing quality assessment specifications for structural integrity after the test cycles. … Disinfection, washing, drying, re-lubrication and reuse of the device were not associated with penile discharge, symptomatic vaginal irritation or adverse colposcopic findings in study volunteers. A presentation at the 1998 International AIDS conference concluded that "washing, drying and re-lubricating the female condom up to ten times does not significantly alter the structural integrity of the device. Further microbiological and virological tests are required before re-use of the female condom can be recommended."