Tested high concentration (shock) liquid chlorine and observed the same behavior as bleach, where after only ~12 hours the yellowish liquid turned clear and emitted little odor. More research is showing chlorine concentration decays in a matter of hours, so it does not appear chlorine is likely to work as a vapor source. Further, in rinsing the reservoir I observed the lid separate from the tray, indicating the chlorine liquid and/or vapor was likely attacking/etching the bonding.
For this application, the requirement is have vapor emission for extended periods of time. Plan is to assess vapors emitted from recognized coronavirus disinfectants. The EPA published a list of 392 different "Products with Emerging Viral Pathogens AND Human Coronavirus claims for use against SARS-CoV-2." See attached link (below). Of particular note is hydrogen peroxide liquid and vapor, used in sterilization and disinfection of hospital waste and devices. Origineer Design has been working with hydrogen peroxide for some time, as a additive for controlling mold and mildew formation in Musik Tent and HumiForm reservoirs. A few cap-fulls of 3% peroxide, has been found to be very effective in preventing pathogens in Origineer Design product reservoirs and the associated filaments. These are chronicled in the Musik Tent blog at https://www.origineer.com/blog1.
To evaluate HumiForm in generating peroxide vapor, it should be relatively simple to measure humidity levels as an indicator of the emission rate. We still need lab assistance in measuring the effectiveness of vapors at these emission rates in disinfecting/sterilizing pathogens.
Damon DeBusk is a multi-patented product designer, process and quality engineer, project manager, author, and inventor of Musik Tent Instrument Humidors and HumiForm Cigar Humidifiers. He has decades of experience with HCl gas and liquid chlorides, and was co-inventor for U.S. Patent 5,599,425, Predecomposition of organic chlorides for silicon processing, a commercial product sold by Air Products under the trade name, Trans-LC, and authored numerous technical publications .