Of the particle-filtering type, all of the models, including the replaceable filter and reusable filter, can become clogged, making breathing difficult. If you notice this problem, have the filter changed. Particle-filtering respirators are not effective against vapors and gases. Hose masks supply noncompressed air through a large hose by a motor. Air-line devices move compressed air through a pressurized line.
Air flows into the facepiece continuously to prevent contaminated air from leaking in.
A self-contained breathing apparatus supplies air from a source carried by the user, such as a scuba tank, for example. SCBAs, except combination devices, cannot be used for long periods because of the limited air supply. For every type of respirator that we use, choice and use is extremely important. It's also important that you be fit tested for the type of respirator you use. If you have any questions concerning the use of any respirator, please get in touch with me.