When seeking a more natural solution for ridding your home of mold, many people favor a thyme-based fungicide, with studies demonstrating its effectiveness in suppressing mold growth in damp dwellings. However, Tessier cautions that these can be irritating to mucous membranes, and can pose a risk to people who are chemically sensitive. It’s important to remember that, while better for the environment, natural products do not always ensure safety.
Other anti-fungal agents, including vinegar and tea tree oil have shown promise in combating mold.
Studies have indicated that vinegar (4.0% to 4.2% acetic acid) inhibited the growth and sporulation of one species, but not the other, while tea tree oil was shown to inhibit the growth of both species.This begs the question: could a 10% acetic acid be that much more effective? While it seems logical, there is insufficient evidence to prove it.
Tessier prefers the use of hydrogen peroxide (3% acetic acid), for its ability to kill mold without the toxic risk imposed by chlorine exposure. Hydrogen peroxide also bubbles when it is put into contact with living substances, which helps let you know it’s doing its job. The downfall, according to Tessier, is that spores can still survive peroxide application, and it does leave behind water and mold fragments (similar to bleach).
Per Tessier, a growing body of research suggests that a higher concentration of hydrogen peroxide, applied over a longer period of time, can potentially induce more fungicidal activity. However, there are some molds/fungi that are more susceptible to this (and other) fungicidal interventions.