In general, respirators can be divided into two primary categories: simpler, single-use disposable masks and reusable respirators that use more advanced air filter cartridges. Reusable respirators are also known as air purifying respirators, occasionally abbreviated as APRs, and can be further broken down into two common types: full-face respirators and half-mask respirators. Have a look at How Companies and Manufacturers are Helping in the Fight Against COVID-19 – Reality Paper for more info on this. It’s important to learn which form of respirator to use under the different situations and dangers that could exist! Valid masks do not trap oxygen as do reusable respirators. So always do your homework to learn whether using a disposable mask or a reusable respirator is acceptable.
Unlike disposable masks and reusable respirators, half-mask respirators and full-face respirators both have their own set of circumstances in which one is favoured, or even required, to use over another. Half-mask respirators are commonly used in cases where the eyes do not need to be shielded from the vapors of contaminants to which they are being subjected. Many gasses that may occur in a hazardous area can irritate the eyes, or cause serious damage. Obviously, such conditions will require a individual to use a full-face respirator. A typical example is a fireman who uses a full-face respirator. Of course these citizens still have an oxygen source, but they need a full-face respirator to shield their eyes from the thick smoke that the fire gives out. When drawing, a common scenario where half-mask respirators are used is.
One of the disadvantages of using a full-face respirator mask is that the filter may get distorted and make it harder to see. Additionally, when used in cases such as painting the mask can be replaced with a image of the substance used in the job environment. That too may overwhelm the view. Many masks have the option to purchase lens coverings that adhere to the full-face mask and can be peeled off after usage