Nanoclean Nasofilters Pollution Net/Mesh For Window with Nanofiber Layer Protection from PM 2.5 | Dust| UV Rays| Pollens| Rainwater | Good Transparency & Air Flow (4X4.5ft)

Super fine mesh with good stiffness but company could add on an accessory to mount them on as nothing of that is provided or instructed.Otherwise very good.

Waited to write this review as real review comes in winter dust. It is a very good product. It actually works. I tested this product using talcum powder and there was no powder coming through from the other side. It only came when i rubbed it little bit vigoursly but dust and pollens cannot pass for sure if installed properly. I think company should provide pre-installed velcro on the net so that we paste it on the window frame easily.. I had to get velcro tape stitched on it and paste the other velcro side on the wall using fevibond for better adhesion. I wash it only when I notice there is some major dust collection on the other side of the net otherwise I dont even require to touch it.. This product will be a much bigger hit if they provide a installation mount + reduce price.. Whole india will buy it for all their windows..

I really didn't like this product:1. You can't mount it even with two sided adhesive tape2. So you have to stitch on the velcro, this means you've altered the product even before getting to use it and so can't return it3. As for the "patent pending" tag, anyone and I mean ANYONE can file a patent for literally anything as long as you've got the money to throw for the procedure4. The product is a clear rip-off of another imported one that's ten times as costly as thisWhether it's actually effective, I'll leave that question to someone with a PM2.5 scattering measurement toolRight now the whole product design seems to be with an aim to evade any accountability while making sales and denying returns.

Blocks dust and pollen with great efficiency. Cutting down 1 star because there is no way to mount it to the window. Have to seek professional help for this. It needs to be user friendly.

They have only provided the net. No velcro or any mechanism to stick it to the windows!! Additionally, the stitching at the edges is shoddy and does not have a good finish. Looks like they stitched this product in a hurry. Also, the package in which it came was torn and the net was exposed. Lastly, the 3 layer technology that these sellers claim in the product description seems doubtful, as I can only see 2 layers.