Soft Seal
This is a N95 NIOSH certified mask. Soft Seal has several different masks within two categories, the silicone seal line has a good seal. Within the silicone seal line, they have four different options which all have an exhalation valve which is not suitable for protecting others.
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* "After taking it off, wash your hands again so that anything transferred to your hands won’t be transferred to your nose, mouth or eyes. When you take your mask off, you should place it in an open container/box/bag to let the humidity from your breath captured on the inside of your mask evaporate. Do not put it in a sealed container. We suggest always placing it in the container with the front of the mask facing up so the contaminated side of the mask is not against the container surface. Although we have performed no specific studies, recommendations in the literature suggest after 3-4 days, there is likely no living viruses on the surface. Some healthcare workers rotate three masks so that each mask is allowed to dry out for two days, potentially reduce viral load, and extend the useful life of their masks. However, this does not suggest you do not wash your hands after every time you touch the mask. Also, using disinfecting solutions or wipes containing alcohol have been shown to damage the non-woven filter media and should not be used." - Soft Seal website