Originally Posted by samg
Oxidation by it falling into a filter you mean?
Is there any other ways to do it?
When you bottle, you normally rack to a bottling bucket (out of the fermenter), and leave the trub and floaties behind. That's why many of us do that. Then the clear beer is mixed in with the priming sugar solution, during the racking, and bottled with a bottling wand.
The reason for the bottling wand (and/or tubing) is so that the beer doesn't splash or pour or otherwise get unduly exposed to oxygen. Transferring with a siphon or tubing means that there isn't as much chance for the beer to have oxygen pickup. Putting it through a strainer or filter after fermentation (when the beer is vulnerable to oxidation) would ruin it.
I have seen a few people put a sanitized paint straining bag over the racking cane, inside the fermenter, to avoid sucking up floaties. I've never had luck with that, as it clogged my siphon, but others have. Careful racking is the best and easiest way to avoid floaties in the beer.
If your beer isn't clear and it needs to be filtered or strained at bottling to be clear, there is an issue with the transferring techniques so I'd look at how the beer looks (should be clear) before transferring, and I'd consider working on better siphoning techniques instead of risking oxidation.