The Effects of Medical Masks

Two types of masks can be worn for medical use. One is a form-fitting mask made of woven fibers known as a N-95 respirator. The other is a loose-fitting mask made of a thin layer of material that covers the nose and mouth, that is known as a surgical mask. While information is limited on their effectiveness, these masks can be used in an attempt to prevent the spread of disease.

Patient Protection

• A medical face mask prevents splashes and droplets from the wearer from infecting his patient. If a doctor, dentist or surgeon coughs or sneezes during a procedure, the mask can keep the germs from hitting a patient who may be susceptible to sickness.

Caregiver Protection

• A medical face mask can also be used to protect a medical practitioner from contagious disease, by preventing blood and bodily fluids from contacting the wearer's face. Medical face masks are often used in this way to prevent the spread of the flu. For uses of personal protection when treating highly contagious patients, the medical practitioner will more often wear a respirator, which is better able to protect against very small particles in the air.

Particle Inhalation

• While face masks can help prevent the spread of blood borne pathogens, they have not been proven effective against the inhalation of small particles and aerosols that contain viruses according to the U.S. Centers for Disease Control. Though respirators are better suited for protecting against small particles, they still are not guaranteed to prevent diseases such as influenza.

Effects Based on Usage

• Though the medical benefits of face masks are not conclusive, results are better when masks are used properly. The mask should be worn over the mouth and nose and must be worn consistently in conditions that could spread disease. After a mask has been used once, it should be discarded.