.3 microns
An N95 or similar mask will filter viruses (H1N1 included) But its not the micron filtration size that needs to be focused on, its the proper fit of the mask. Leaks from improper fit and deep breaths will severely limit the effectiveness of simple filter masks. The other consideration is behavior while masked. Wiping the eyes, picking your teeth under the mask, etc.
8 gb
The respirator masks that are designated with the filter class of N95 means that the respirator filter will block at least 95% of small particles. The N refers to its properties related to oil resistance of the mask: N = Not Oil Resistant, R = Oil Resistant, P = Oil Proof
The pore size is the average 100 micrometers.
When the pore size is increased it allows more fluids and solutes to pass through which is why the filtration rate increases. This means that the pore size and the filtration rate are directly proportional.
The sides of the mask should dimple inwards when you inhale sharply. And bulge slightly when you exhale. That is for the N95 Respiraotor Masks we have here anyway.
If the 25 and 50um refer to the actual pore size, then the 50 would be larger pore size
It isnβt always easy to buy one or two masks and continue using them, because every mask has its own life. Wondering where to buy face masks for you and your family in bulk, preferably a little cheaper too? Simply log on to accumed and you will notice how it actually is your one-stop destination. Name the type of mask and they have it for you, in bulk and at a slightly reduced price range too.
Not if you are wearing it to protect you from viruses or other sub-microscopic pathogens or pollution/fumes. These N95 masks are more like respirators than a cloth or paper surgical mask. None of these should be reused when used for medical purposes, they should be thrown away after each use since they may harbor some of the filtered particles on the outside that could contaminate people or environments. They can not be washed for reuse, either, this will potentially deform or disintegrate the mask rendering it ineffective. N95 masks must also be medically fit to your face or they will not be effective. They are not recommended for children or those with beards or mustaches because that can allow gaps for particles to enter around the mask. See more in the related questions section.
0.2-0.45mm
250 micron
0.2 micron