05/18/2020
At present, there is no clear conclusion on the optimal wearing time of N95 masks abroad, including WHO, and China has not yet made relevant regulations on the use time of masks
Some researchers have conducted relevant research on the protection efficiency and wearing time of N95 medical protective masks.
The results show that the filtration efficiency of N95 masks is still above 95% for 2 days, and the respiratory resistance does not change much; the filtration efficiency is reduced to 94.7 after 3 days %.
Some researchers have conducted relevant research on the protection efficiency and wearing time of N95 medical protective masks.
The results show that the filtration efficiency of N95 masks is still above 95% for 2 days, and the respiratory resistance does not change much; the filtration efficiency is reduced to 94.7 after 3 days %.
04/27/2020
The standard for paper straws is not fixation. It is in the process of groping.
The standard for paper straws is depend on manufacturers and customer. So how much paper is used for straws lies on the standard for paper straws.
The standard for paper straws is in the hands of the customer. The customer is god, but god does not pay for his mistakes. Even though paper straws have been published for a long time. But paper straw industry not only the manufacturer is a novice, the customer is also a beginner.
The standard for paper straws is depend on manufacturers and customer. So how much paper is used for straws lies on the standard for paper straws.
The standard for paper straws is in the hands of the customer. The customer is god, but god does not pay for his mistakes. Even though paper straws have been published for a long time. But paper straw industry not only the manufacturer is a novice, the customer is also a beginner.
04/26/2020
The past few years，with plastic straws had been forbidden. More and more the industry of paper straws has been developing. I think you must care about the price of paper straws. Are them more expensive than plastic straws? How much more do paper straws cost over plastic straws? Here I will show you.
As we all know, paper straws are more environmental and secure than that which made of plastic. Due to environmental problems, there has been an anti-plastic frenzy around the world.
As we all know, paper straws are more environmental and secure than that which made of plastic. Due to environmental problems, there has been an anti-plastic frenzy around the world.
04/25/2020
Paper straws are made from paper. So you must care about how long paper straws last for. Properly speaking, paper straws break down more quickly than plastic straws. At first you should know where you put paper straws in.
Differences of beverages can influence the lifetime of paper straws. For all I know, paper straws can last for 2 hours at least in beverages at normal temperature. The drink is hotter, the time is shorter.
At last, rubbish may be buried in the soil or thrown into the ocean. Under the circumstances,
Differences of beverages can influence the lifetime of paper straws. For all I know, paper straws can last for 2 hours at least in beverages at normal temperature. The drink is hotter, the time is shorter.
At last, rubbish may be buried in the soil or thrown into the ocean. Under the circumstances,
04/12/2020
China Paper doilies are essentials products that can serve any purpose in the home or any indoor or outdoor event. In several places all over the world, the use of paper doilies has shown to be very effective in adding a lot of aesthetic appeal to your home.
All around the world, there are a lot of manufacturers which produce these paper doilies that are used all over the world. But, there is one place that does best when it comes to the production of these china doilies.
The manufacturing of paper doilies in China is a big business and big industries all over China are cashing out of this.
All around the world, there are a lot of manufacturers which produce these paper doilies that are used all over the world. But, there is one place that does best when it comes to the production of these china doilies.
The manufacturing of paper doilies in China is a big business and big industries all over China are cashing out of this.