Onzo Zero Dust... Deflated?

Very bad idea bondmanp. It will leave a residue on your stylus which you will transfer to your records the everything will stick to everything. 

If your records are clean the only thing you need to keep your stylus clean is an artist's brush. If you have old or used records always clean them before you play them for the first time. If you use a grounded sweep arm and a dust cover you will never have to clean them again. If the stylus collects something the brush can't get off the a solution of 25% 91% isopropyl alcohol in distilled water using the same brush will take it off. With modern styli that are glued to the end of the cantilever you do not want to do this more than once a month. 

mijostyn

... It will leave a residue on your stylus which you will transfer to your records the everything will stick to everything ...

I've not heard that complaint about Zero Dust. Are you simply speculating, or do you you have actual experience with the product?

If your records are clean the only thing you need to keep your stylus clean is an artist's brush.

That will work for everyone who plays records in a "clean room." For those of us who live in domestic environments, even a pristine LP will eventually accumulate dust.

If you use a grounded sweep arm and a dust cover you will never have to clean them again.

That is quite mistaken, but I'll let you prove that to yourself:

If the stylus collects something the brush can't get off the a solution of 25% 91% isopropyl alcohol in distilled water using the same brush will take it off ...

If your records are truly clean there will be no dust for the stylus to collect. By the time a stylus visibly accumulates dust you've changed its effective VTF (because the force is distributed along a wider area), you've potentially ground some of that dust into the LP itself, and the dust has likely accelerated stylus wear.

I’ve also heard that Moongel works just as the Onzo.

I also have an Onzo, but I switched over to Blu-Tack which is even less expensive and highly recommended by Peter Lederamann @ Soundsmith.