YOVO JB50000 Pod $12.89 PerfectVape Johno's Easy Vap Vaporizer Page 9 Beesource Beekeeping Forums Johno's Easy Vap Instantvap Lite Oxalic Acid Vaporizer DeWalt Battery Compatible I like to treat my hives with OAV at least once a month during winter when the temps hit the 40s and I see some activity. I use a Johnno's easy vap vaporizer. 15 hives took less than 30 minutes. Thank What's the Buzz GeesBees