Select the protection level and look at the dust in the environment: If there is only harmful gas, the general tank selection can meet the requirements; if it contains dust, then the tank sho …

How long is the life cycle of activated carbon masks I don't know if you have such a question. How long is the life cycle of the most common activated carbon mask in life? Today Zhongbao Prot …

What are the standards of Chinese masks, mask manufacturers tell you GB2626-2006 Respiratory Protective Products-Self-priming Filtering Anti-particulate Respirator This standard specifies the …

Classification by shape Masks are divided into three types: flat, foldable, and cup-shaped. The flat mask is easy to carry, but has poor adhesion; the folding mask is easy to carry; the cup-s …

Q: What is the current production capacity of masks in China? Can it meet the needs of national epidemic prevention and control? Responsible comrades of the relevant departments of the Minist …

What are the standards for masks? At present, a national fight to prevent and control the new type of coronavirus infection pneumonia has begun. As the "first line of defense" for personal hy …

1、protective medical masks Protective medical masks are generally made of folded cones, which is our common N95 mask. It needs to meet the national standard of GB19083. There are two core te …

In recent days, the number of cases of new coronavirus pneumonia has increased sharply. Today, the number of confirmed patients in the country has reached 28,065. People have gradually paid m …

Use a mask to prevent PM2.5 do, the mask on the market a variety of. Recently, Shanghai police also issued a new "stealth mask" U - known as nasal congestion, can purify the air through the f …

Haze, the core component of haze is suspended in the air of smoke and dust and other substances, can directly enter and adhere to the human respiratory and pulmonary lobes.As a result, smokin …