If I did anything right now, the AIrROS would go nuts trying to stomp out the VOC's from the pipe glue, silicone, new tubing, etc. That thing is super sensitive. Normal operating range is 30 parts per billion... with a B. On the very.. and I mean very rare occasion that a woman comes in that room, the display will go from 30 PPB to 0. It's trying to eat up all the perfume, hair product, laundry detergent, etc. I have a dedicated set of clothes that I work in out there, and use very little detergent when I do wash them. No cologne, or anything else with strong VOC's. But on the plus side, a fart is non detectable..