Requested from me was a professional opinion on the potential toxic risks from isopropanol and a proprietary ingredient when used in swimming
pools as a part of your product HEAT$AVR. Provided to me were study results that demonstrated that the concentration of isopropanol peaked within 10-25 minutes after addition to the pool and dropped quickly
thereafter. The highest peak level measured was 0.8 ppm. Also provided to me were toxicity testing results that found no eye or skin irritation from 50 ppm when tested as the HEAT$AVR product.
I did a literature review and found three references that addressed allowable or no-effect exposure levels for isopropanol. This
information and that supplied by you are summarized in the table below.
From this table, it is clear that even the highest concentration found in the pool study is well below concentrations that are either not expected to cause toxicity or are allowed by regulatory authorities. For these reasons, it is my opinion that under conditions of intended use the isopropanol component of HEAT$AVR presents no health risk to the general public.
Also based on a literature review, I found that at high concentrations (100%) the proprietary ingredient has a very low order of acute
toxicity and is only minimally to mildly irritating to eyes and skin. In concentrations used in HEAT$AVR, it is my opinion that the proprietary ingredient would present no health risk to the general public.
Charles A. Lapin, Ph.D.
Diplomate of the American Board of Toxicology