Ok... probably will get slammed down to the floor, but this is just an opinion (not a forced one )

I experimented with a couple of vocal treatment scenarios including a microphone shield, a few pop filters (nylon, metal mesh) blanket, etc.
When there is too much stuff on the mic stand, I just feel a little claustrophobic I do not have space or will to build a booth, so went on a quest to find a different approach to sound. And found this magical thing: Alctron PF8!
It is a $24 (ebay) large piece of foam that fits wide variety of mics and comes with removable pop filter. Some call it "portable vocal booth", some call it junk that doesn't work, some bragging that it adds too much color,
some swear that quality is identical to a $200 overpriced (for no good reason) kaotica eyeball.

I love my $24 Alctron!
1) It makes mic setup much more compact.
2) Surprisingly it actually helps a lot to isolate unwanted noise.
3)If I am singing from sheet, I have a lot of space, unlike when using large shield.
4) price point. It ranges from $23-$28 including shipping. US stock.

I don't want to post links as it will seem like an advertisement. You can find one easily. Just want to share my experience.

Great find this is definitely suitable and a space saver for the home studio set up I'm buying one !.

What about this version? What's the advantage or disadvantage. Just wondering. It's only a bit more expensive.

https://www.ebay.com/itm/Alctron-PF8-Pro-Noise-Reduction-Foam-Acoustic-Filter-Mesh-Microphone-Wind-Screen/233252588389?

lambada,
sorry do not know about this one. My version (PF8) works very well for me and it is also very light. I think PF8 Pro just looks fancier, and most likely is heavier. I doubt there will be very noticeable difference in results

Heck, I used to use an old embroidery hoop and some old nylon stockings..... worked just fine.

I eventually decided to upgrade to a real pop filter..... it looks better but the old one was a pretty blue.

You can see it on my website under the studio link.... all the way to the bottom just above the guitar pics.... laying on the desk beside the lappy

Herb, I use a pop filter too and old thick comforters on rolling carts to make a temporary vocal booth.

The product the OP's talking about is for damping room noise like room echo, a bad sounding room or maybe even clock ticks, computer fans, etc.

Sounds like a great idea if something that small really works for keeping unwanted room noise out of the vocal mic.