Liquid Boron™ is a highly effective timber treatment, to protect against possible attack by common house borer, treated correctly the timber will conform to the H1 level of protection. While Liquid Boron™ is effective, it is also safe for people and pets when used as recommended. Borates are naturally-occurring mineral salts that are essential elements to plant life and are nutritionally important to a healthy diet for people. Liquid Boron™ will provide long-term protection for the interior structural framing of the home. Liquid Boron™ will not evaporate or volatize from the wood and borates are not considered hazardous.