Several kinds of dust masks maintenance methods

Dust (especially industrial dust) is the enemy of human health. The finer the dust, the longer it stays in the air and the easier it can be inhaled. In particular, respiratory dust less than 5 microns will directly enter the alveoli and deposit, resulting in silicosis or other pneumoconiosis, and at the same time, it will cause injury to labor. , but it is dead.

With the development of various air pollution problems, dust masks have become a necessity in people's lives. How much do you know about dust masks that are used frequently? We will introduce some knowledge about dust masks for everyone.

First, the type of dust mask

1, dust masks classification:

According to its structure and working principle is divided into two categories: self-absorption filter type and air supply type.

Self-absorption filter type: The working principle of the short-term filter-type mask is to filter the air containing the harmful substances through the filtering material of the mask and then inhale it;

Air-supply type: It refers to the clean gas source that is isolated from the harmful substances. It can be sent to the person’s face for breathing through power functions such as air compressors and compressed gas bottle devices.

Self-absorption filter dust mask structure is divided into two parts: First, the mask mask, we can simply understand that it is a mask of the shelf; the other is the filter part, including filter cotton for dust and anti-virus Used chemical filter boxes.

Self-priming filter dust masks also include several types:

Half face: masks that cover only the respiratory organs (mouth and nose);

Full-size: the mask covers the entire face including the eyes;

Electric air supply type: It is driven by battery and motor, and the air containing harmful substances is sucked into the filter medium for people to breathe.

Half-face masks are divided into:

Maintenance-free type: This type of mask is mostly dust-proof, its main body and filter material are combined into one, and the filter material cannot be replaced;

Low maintenance type: The main body of the mask does not have replaceable parts, and if it is damaged, the entire mask needs to be replaced;

General maintenance type: When the parts of the mask are damaged, they can be replaced one by one, and you should always pay attention to maintenance.

Second, dust masks maintenance methods

1. When the mask is not worn, it should be folded and placed in a clean envelope. It should be folded tightly against the side of the nose and mouth, and should not be stuffed in the pocket or hung on the neck.

2, dust masks should adhere to daily cleaning and disinfection, whether it is gauze masks, or air filter masks can be used to disinfect the heating method.

The specific approach is:

(1) Cleaning.

Gently rub the gauze mask with warm water and soap. The bowl-shaped mask can be gently brushed with a soft brush, then rinsed with water. Please note that do not rub hard, because if the longitude and latitude of gauze is too large, it will lose the role of anti-impedance droplets.

(2) Disinfection.

Soak the clean mask in a 2% solution of peracetic acid for 30 minutes or boil in boiling water for 20 minutes or steam in a steamer for 15 minutes, and then dry it for use. This method is suitable for gauze masks and bowl-shaped masks.

(3) inspection.

Before using it again, you should carefully check whether the mask and mask are still intact. For the gauze masks and masks, you can use the light transmission inspection method, that is, take a look before the lamp to see if there is any obvious light spot, and the middle part and the edge part are translucent. The rate is not the same. If there is doubt, it will be replaced with new ones. In any case, masks and masks are generally refreshed after 3 to 7 washings, and masks of particularly good quality can be washed 10 times. Activated carbon adsorption mask should pay attention to the regular replacement of activated carbon sandwich, if the activated carbon sandwich is not replaceable, used to be replaced within 7 to 14 days, this mask can not be cleaned and then reused.