Which cleanest 1 ?
0.22 catches bacteria better; cleaner oil every time.
0.45 works, but misses smaller contaminants pretty often.
Cheap filters clog fast and barely protect anything.
For injectables, 0.22 always safest choice, no debate.
0.45 fine for pre-filtering, not final sterile work.
0.22 gives smoother draw and peace of mind.
Cheap filters gamble with sterility; infections cost more.
0.45 passes quicker but sacrifices actual filtration quality.
Cheap filters inconsistent, sometimes fail mid-process completely.
Best practice: 0.22 final filter every single time.
