Marjorie Stevenson PM 2.5 Activated Carbon Filters Dustproof 5 Layers Replacement( 50 PCS)

Measures very close to 4.75”x3.25” and are packed in 2’s in fold-to-close-self-stick clear cellophane bag and then placed in translucent ziplock type bag. Total of 25 bags with 2 filters in it.As much as I would want them in properly sealed condition with proper packaging and labeling, they are not. But then again, chances almost all that are sold and shipped from China comes packed in this manner. To give it credit, they are packed with good attention and not sloppy.Unless you get the 3M ones that are from 3M and are properly certified which are about impossible to get... these Chinese off brands are pretty much your best bet.Would I start complaining? No choice really as these are better than nothing.Even traditional disposable masks that are sold here on amazon are packed in plastic bags.Anyway, with options that are slim and given the circumstances, whether these meet PM2.5 standards or not (which I highly doubt that they do) I’m giving it a 3 star rating..

Your browser does not support HTML5 video.  The product arrived. All 50 insert filters came in the same bag. They have a very strong smell and have 5 layers which makes them thick.Cons - the smell is too strong, if I cannot rid of the smell these will be useless.Pros - thick layered, arrived before expected date

These took a while to get but I am so happy I made the purchase. Last summer we had so many wild fires and wore masks because of the smoke so virus or no virus these will be useful. Unfortunately the fires are another huge problem especially anywhere in California.

Great value for your money, however due to Covid-19, the item did not arrive as scheduled. Item is exactly as described. Worth to extra wait time.

Basic 2.5 filters of course. But the way they are packed is exceptional. Main bag holding them has a very good zip closure. And 2 filters each in separate snug bags, Easy to keep safe and clean. Price is great too.

Took a while to arrive I was scared that I wasn't gonna get the package, but when they arrive they appear to be of good quality. My dad has been using them to go to work as a gallery sales man. Never stoped going to work, so these filters have come in handy.

Despite a major shipping problem that could not be controlled by the seller, this seller did respond to my order inquiry (found in spam folder) and order was received and was better than described.

Product seems to work great - only difficulty is inserting them in mask. Takes a little effort to put them in so they fit comfortably.