7 micron will filter smaller particles than 10 micron.
It is 7*100 microns.
0.1 micron = 10-7 metres or one ten millionths of a metre.
Because it's the same units used and 7 > 3. (ie 7 kilometres is farther to run than 3 kilometres)
Merv ratings are a more quantifiable way to measure the effectiveness of a filter to remove contaminants from the air stream. A filter with a MERV rating of 3 is a typical home furnace filter and is about 15% efficient at removing dust. A MERV 7 is one of the better residential furnace filters you can purchase and is about 25% efficient at removing dust. A MERV 12 filter is the top of the line filter for residential use and is about 70% efficient. There are multiple steps in between and there are steps above that are used in commercial applications. HEPA filters that you will see for residential use and in clean room applications are designed to remove 99.97% of all particulate 0.3 microns and above and are rated at a MERV 17. For reference, hair is 25 microns in diameter.
There are 6 different types of white blood cells and they all have different sizes. They are measured by diameter in micrometres (or pm). Neutrophils are 10-12. Eosinophils are 10-12. Basophils are 12-15. Lymphocytes are 7-8. Monocytes are 14-17. And macrophage, which is found only in humans, is 21.
5 micron is bigger than 7 micron. The lower the micron value, the finer the particle size.
A chlamydomonas is a single-celled green alga that is typically about 10-20 micrometers in size. It is small enough to be seen under a light microscope.
7 to 10 days
White blood cells have a variety of different spacial features. They are two types, granulated and agranulted. They can vary in size from about 7 microns for a lymphocyte to 21 microns for a phagocyte.
Micron to millimetre is /1000. micron cubed to mm cubed is / a billion. Therefore this is 1mm3. 1mm3 is 2.64172x10-7 US gallons
Crankcase: w/o filter 7 quarts (6.6L) w/ filter 8 qts(7.6L) Dry system 10 qts (9.5L)
Say Yes to the Dress - 2007 Better Than the First 10-7 was released on: USA: September 2013