➤ It is used in gas anesthesia, to treat asthma and respiratory disorders.

➤ Helium ensures the process of breathing.

➤ People with high-pressure working conditions use a neo-helium mixture as a source of air to prevent caisson disease.

➤ Causes cephalgia, vertigo, pharyngeal reflex, and loss of consciousness.

➤ There is a possibility of death due to asphyxiation.

➤ No noticeable effect on the body's vital processes was found.

(He/O₂ ) - He 72%

➤ It is important for the treatment of acute respiratory diseases and allergic reactions, and is used as an anesthetic during gas anesthesia.

➤ When mixed with Helium, it is used to facilitate breathing in patients with respiratory diseas.

➤ It is not used in alternative medicine.

➤ Inhalation of pure Helium leads to hypoxia.

➤ Vertigo, pharyngeal reflex, loss of consciousness and possible death are caused by asphyxiation.

➤ Antidote: Oxygen.

➤ Chemically inert;

➤ The strongest molecule;

➤ Lowest boiling point;

➤ Minimal solubility in liquids; low adsorption capacity;

➤ The best conductor of electric current of all gases;

➤ High heat capacity; high permeability to metals (except Fe, Pt).

➤ Liquid He is the coldest liquid; it has minimal surface tension.