Masks have three main effects: preventing dust, preventing chemicals (including car smoke) and preventing microorganisms.
Currently there are disposable paper masks that have many vertical folds, so they fit snugly on the mouth and nose so they work very well to protect the wearer.
Conventional fabric masks have an ear strap. Workers’ protective masks are mainly this type. Ordinary fabric masks only work to shield the sun, prevent dust in large sizes, prevent the smell of car smoke and if the wearer does not disinfect before using it will be susceptible to skin infections, road diseases. Respiratory … Masks made of ordinary cloth do not filter toxic gas (smoke, gasoline vapor, oil, coal …).
Masks containing activated carbon masks are divided into 2 categories; fabrics with active and seamless textile layers; Type with activated carbon sheet placed in between 2 layers of fabric. Activated fiber is a fabric impregnated with activated carbon that only works after 2 washing times. For an activated carbon mask advertised as a year-long charcoal liner is not correct. The activated carbon liner can become full after just a few days of use. For activated carbon masks, there is a bad smell because the manufacturer uses glue to spray the activated carbon particles. It is the colloidal particles that surround the coal particles that will make the coal layer lose its absorption effect.
Current medical masks are usually disposable and then discarded.
On the market, there are many types of masks on the pavement made from moldy fabrics, scraps and bleach, containing countless bacteria that threaten the health of users. In many places, masks are made of raw materials that are fabric waste and are of poor quality. In particular, most of the masks on sale today are designed not to hug the wearer’s nose and mouth, creating gaps for bacteria to penetrate. So, masks only help to avoid dust somewhat, not bacteria.
When wearing a face mask, the nose and mouth must be covered. Otherwise, dust, chemicals and microorganisms will not pass through the filter, but go through the crevice into the nose and mouth, running deep into the lungs. For the nose mask, dust, chemicals and microorganisms still have the ability to penetrate the body through the mouth, although to a lesser extent. Many people have the habit of buying masks along the way and then use them immediately or hang, hook them up on the car, put them in their clothes pockets … causing the face mask to become infected with harmful microorganisms due to dust, moisture, mold, odor … Do not rule out the re-rhinitis caused by using a mask that has previously been infected with bacteria. Therefore, for masks made of fabric, they must be washed after buying. Once used, you should wash each day with soap and dry or dry thoroughly then use it again to avoid contagious diseases right from your mask.
Cautions on using medical masks
For medical masks, the manufacturer recommends using only 1 time, you should use only 1 time, should not reuse many times to ensure safety for health, protect the respiratory system, the skin is better.
When using activated carbon medical face masks, if you reuse them again, you should avoid touching the surface of the mask and be careful of the next use to avoid dust on the mask. Harmful to wear.
Medical masks usually only avoid dust, harmful bacteria but cannot help sun-protection, can be used with cloth masks, which can be reused many times, until the cloth is torn or old, you should discard it. .
One downside of fabric masks cannot against bacteria, dirt is super small, so people need to use it in combination with medical masks.
For fabric masks like this, people must wash them often, once every 1-2 days, need to be washed regularly with soap, sun-dry to kill bacteria, remove dirt.
