Review on Radia Smart EMF Faraday Blanket by Carmen Marshall

I was hoping that this product would be well made and effective for EMI protection. The item description says it has been tested by an independent lab. I ordered this product because the price is moderate and I can't afford a brand worth more than $100. Upon receipt, I found it to be of high quality materials and workmanship. However, when I asked the seller to confirm it was effective for shielding and asked for a copy of the test results, he said he tested the blanket himself and sent me a link to a YouTube video showing the one shows person wrapping cell phone with it several layers of blanket then scan with handheld EMF meter! To be fair, I understand that testing such products is NOT EASY and this blanket COULD work, but without certification it's impossible to tell. The seller didn't make any arguments about the return and Revane helped.