The correct steps for using the mask field of view tester instrument

The mask field of view tester is a device specifically designed to test the field of view when wearing a mask. It can help people understand the impact on their visual field after wearing masks, so as to better choose the mask that suits them. The main function is to test the size of the field of view when wearing a mask, in order to help people understand whether wearing a mask will affect their field of view. In places that require high-precision operations, such as operating rooms, laboratories, etc., wearing a mask can have a significant impact on the field of vision. Therefore, it is necessary to use a tester to select the appropriate mask. In addition, wearing a mask in sports venues, construction sites, and other places can also affect the field of vision. Therefore, it is necessary to use a tester to select a suitable mask to ensure safety and efficiency.

The mask field of view tester is widely used in fields such as healthcare, sports, construction, and industrial production. In the field of medical and health care, when used in operating rooms, ICUs, and other places, selecting appropriate masks can ensure that medical personnel are safer in contact with high-risk patients. In the field of sports, when used in competitions such as football, basketball, table tennis, etc., choosing a suitable mask can ensure that the athlete's vision is not affected and improve the level of competition. In fields such as construction and industrial production, wearing a mask is also necessary, and choosing a suitable mask can reduce accident risk and improve work efficiency.

 

The correct steps for using the mask field of view tester instrument:

 

1. Turn on the device power and place the tester in a suitable position.

 

2. Adjust the height and angle of the tester so that it is at the same height as the subject's eye and directly facing the subject's line of sight.

 

3. The subject should wear a mask and adjust the position of the mask to make it comfortable and sealed.

 

4. The subject gazes at the dot matrix pattern in front of the tester and views the subject's field of view on the tester's backend software.

 

5. Select a suitable mask based on the test results and retest it.