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The smallest both HEPA H11 and HEPA H12 filter ...
We are going to design the face masks to cover both nose and mouth. There are two type of face masks: 1. HEPA H11 filter face mask 2. HEPA H12...
The smallest both HEPA H11 and HEPA H12 filter ...
We are going to design the face masks to cover both nose and mouth. There are two type of face masks: 1. HEPA H11 filter face mask 2. HEPA H12...
Disadvantage of face mask, need a new mask!
Relonged use of N95 and surgical masks by healthcare professionals during COVID-19 has caused adverse effects such as headaches, difficulty breathing, rash, acne, skin breakdown. Surgical masks also do not...
Disadvantage of face mask, need a new mask!
Relonged use of N95 and surgical masks by healthcare professionals during COVID-19 has caused adverse effects such as headaches, difficulty breathing, rash, acne, skin breakdown. Surgical masks also do not...
Air quality in East Palestine
Some East Palestine residents who have since returned to their homes after evacuated have reported experiencing headached and nausea. Other say the air has a foul orod to it. I...
Air quality in East Palestine
Some East Palestine residents who have since returned to their homes after evacuated have reported experiencing headached and nausea. Other say the air has a foul orod to it. I...
What should we do first when you face eathquake...
What should we do first when you face eathquake, buliding fire, wildfire smoke, volcanic eruptions, war and checmical explosion? We should wear good quality of face mask, nose mask or...
What should we do first when you face eathquake...
What should we do first when you face eathquake, buliding fire, wildfire smoke, volcanic eruptions, war and checmical explosion? We should wear good quality of face mask, nose mask or...
It’s not really accurate to call it a fire seas...
The wildfire is not really accurate to call it a fire season in California due to climate changed. What should we do ? I think we should have very good...
It’s not really accurate to call it a fire seas...
The wildfire is not really accurate to call it a fire season in California due to climate changed. What should we do ? I think we should have very good...
Performance of the nose mask
I wear HEPA nose mask for 2.5 hours to package the activated carbon bag. There is dust during the package. All the dust is brocked on filter. There is no...
Performance of the nose mask
I wear HEPA nose mask for 2.5 hours to package the activated carbon bag. There is dust during the package. All the dust is brocked on filter. There is no...