When handling hydrofluoric acid, it is crucial to use appropriate personal protective equipment (PPE) to prevent exposure to this highly corrosive and toxic chemical. The following PPE is generally recommended:

1. Eye and Face Protection: Use chemical splash goggles and a face shield to protect against splashes and vapors that can cause severe eye and skin damage [1].

2. Skin Protection: Wear chemical-resistant gloves, such as those made from neoprene or nitrile, to prevent skin contact. Additionally, use a chemical-resistant apron or full-body suit to protect against spills and splashes [2].

3. Respiratory Protection: If there is a risk of inhaling vapors, use a respirator with an appropriate acid gas cartridge. In situations where the concentration of hydrofluoric acid vapors is unknown or potentially high, a full-facepiece respirator or a self-contained breathing apparatus (SCBA) may be necessary [3].

4. Foot Protection: Wear chemical-resistant boots to protect your feet from spills [2].

Employers are responsible for conducting a hazard assessment to determine the specific PPE requirements based on the concentration and form of hydrofluoric acid being handled, as well as the specific work environment [2]. Additionally, training on the proper use, limitations, and maintenance of PPE is essential to ensure safety [4].