A respirator protects against harmful particles and gases in the air, and is required in certain workplaces. It purifies air through filters before inhalation and must be properly fitted and maintained for effectiveness.
A respirator is a device that is worn over the mouth and nose to protect the wearer from occupational and environmental hazards such as harmful particles and gases in the air. There are many different styles and their functionality varies by style. Not to be confused with a ventilator, which actually aids in breathing, a respirator forces air through a filter before it’s inhaled or provides an alternative, clean source of air for a period of time. It is common in the workplace in fields where workers are exposed to harmful chemicals, dust, debris or gases.
Various forms of the respirator have been around for centuries and initially consisted only of tightly woven fabric immersed in water. The modern versions commonly associated with today’s industrial use were first developed in the late 1800s. Most varieties feature filters that trap dust, debris, and other particles in the incoming air. They may use a mechanical cartridge or a chemical cartridge and work by purifying the air as it passes through respirator filters on its way into your nose and mouth.
For industrial uses, a respirator is often required according to occupational safety guidelines. Workers who have to work in areas where lead, asbestos or other harmful toxins or hazardous chemicals are found are often required to wear one. Other uses include medical conditions, such as severe asthma or chronic obstructive pulmonary disease (COPD), and personal protection from chemical or biological hazards.
A respirator is only effective if it has been properly fitted to an individual wearer and the individual has received training or instruction in proper use and maintenance. For the device to function properly, the wearer must first be fitted with their own respirator. A fit requires a lung exam by a licensed physician and includes pulmonary and pulmonary function tests, as well as other physical evaluations. After the test, those who pass are fitted with a device calibrated to the unique test results based on their body’s performance on the exam. Wearing someone else’s respirator does not guarantee protection and can actually create additional risks.
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