The right answer is HEPA filter.
A HEPA filter (High Efficiency on Particles Air) can filter up to 99.97% of 0.3μ aerial particles.
These filters are used to clean the air and retain suspended particles (dust, pollen, bacteria etc.) and other particles that can cause respiratory allergy in sensitive subjects.
They are very used in sterile rooms
<span>worst thing that can happen in the modern environmentalism according to Jones is that how people treat will respond to you based on your color and status. People think that you are stupid because you are poor, that's why the amount of help that poor people receive if there's a disaster is very limited.
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The period you’ve described would be the G2 phase which is considered a “checkpoint” that determines whether or not a cell can enter the mitosis phase
The nucleus is an organelle
The brain and lungs are both organs
