Prolonged Exposure to Halon Can Be Toxic
The toxicity of the
Halon gases makes them dangerous to use in confined spaces. If it is to be used in such scenarios, precaution is required to minimize any inhalation of Halon. Avoiding all unnecessary exposure to Halon is considered good practice. This is because exposures to concentrations of 7% for more than 15 minutes can be very dangerous. The risk is minor when exposed to Halon in the 5-7% range as no noticeable effect can occur. However, at levels between 7% to 10%, the likelihood of toxicity increases significantly. That’s why, in places where Halon is still used and needed to be used, it is highly recommended that operators evacuate the space before proceeding.
If Health Risks
There are a number of health risks associated with the use of Halon extinguishing agents. These include the following:
• Frostbite: Skin that comes in contact with the liquid of Halon can cause frostbite and chilled skin issues.
• Suffocation: High concentrations of Halon can cause people to suffocate. This is because it can create an oxygen-deficient environment.
• Eye and Skin Irritation: Since Halon is toxic, it can cause damage to skin and eye. Irritation can occur even if there is no direct contact with Halon.
• Cardiac Sensitization: Halon can cause an increased heart rate and irregular heartbeats in response to adrenaline. It can even cause a heart attack in extreme cases.
• Interruption of the Central Nervous System: Inhalation of high concentrations of Halon can interfere with the proper functionality of central nervous system. In such cases, symptoms of tingling sensation and dizziness is expected. A victim can even go unconscious in some cases.
