Air filter respirator, or filter mask for short. The working principle is that the air containing harmful substances is filtered and purified by the filter material of the mask, and then inhaled by the human body.

An air supply respirator is a clean air source that is isolated from harmful substances. It is delivered to the human face by means of a mask, such as an air compressor, a compressed gas cylinder, and so forth, through a mask to the human face.

Filter masks are the most widely used in daily work. The selection methods and operating conditions of such masks are described in detail below. The structure of a filter respirator should be divided into two parts, one is the main body of the mask, which can be simply understood as a mask rack, and the other is the filter part, including filter cotton for dust prevention and chemical filter box for anti-virus. So, for the choice of filter type respirator use, some production facilities are provided as convenience to you, as you can with a mask body, when the dust in the working environment to dust, with the corresponding filter cotton, so you have to wear a anti-dust masks; when the need for gas in the toxic environment, change the filter cotton, device and the corresponding chemical filter box, so it became a respirator or according to your needs, provide more combinations for you.

Brief introduction of filter material for respirator

Filter materials for respirators are divided into two categories, namely, dust control and anti-virus. The effect is that the harmful aerosol, including dust, smoke, droplet, poison gas and toxic vapor, is absorbed by filter material, and is prevented from being inhaled by people.

The use of masks

The mask must be suitable for the use of the mask, and the way of wearing must be correct, so the mask will be effective. Masks sold on the market are generally divided into two types: rectangular and cup-shaped. A rectangular mask should have at least three layers of paper to protect it. The user should press the iron wire on the nasal mask, and then spread the entire mask along the bridge of the nose, in order to give full play to the effectiveness. Let the child wear a rectangular surgical mask, because it does not have a fixed shape, if tied well, can close the child's face. Cup masks ensure that the mask has enough density on the face, and that the air will not leak until it is effective. When wearing a cup mask, hands can be covered with a mask to try to blow, check whether there is air leakage from the edge of the mask, if the mask is not tight, it is necessary to readjust the position and then wear.

When do you need to change the mask?

1. masks contaminated as a blood stained or respiratory and other foreign bodies

2., the user felt respiratory resistance increased. Dust proof filter cotton, the mask and the user's face closed in good condition, when the user felt a great resistance to breathing, indicating that the filter cotton has been filled with dust particles, should be replaced.

3. mask damage

4., the filter box and the user's door close in good condition, when the user smells of poison, the new mask should not be temporary wear, from the physiological structure of human beings, because the human nasal mucosa blood circulation is very exuberant.