NBDIB 4 Pack Adjustable Reusable Face Protection with 8 Carbon Filters and 8 Valves for Cycling Sport Black

Used these in my AP bio classroom for fetal pig dissections and I couldn't smell a thing. It might take a moment to figure out how to put it together, but once you have that down they work amazingly

I’ve tried several different masks for outdoor activities, but the NBDIB Adjustable Reusable Face Protection has easily become my favorite, especially for cycling and running. With 8 carbon filters and 8 valves included in the pack, these masks are designed to provide serious protection while allowing you to breathe comfortably. What I love most is how adjustable they are. The fit is snug without feeling restrictive, which is key when you’re moving around a lot. I used these masks regularly while cycling through busy city streets, and I could instantly feel the difference—the carbon filters really block out dust and pollution, making breathing so much easier. The added valves also prevent that annoying buildup of moisture, so no more soggy mask by the end of a ride! Plus, with four in a pack, I could swap them out and always have a clean one ready to go. Whether you’re cycling, working out, or just navigating crowded areas, these masks are a solid choice for staying safe and comfortable.

Unfortunately for me these are way to small. More for a smaller / slinder faced, person. I should have found a different listing with a size picking option. These are basic breather mask, ok for the money. Im going to give them to the woman in my home and look for a new one that is larger for myself.

If it's well, very durable, and secure once you get the strap closed. It turns out, that I'm sensitive to the inserts that come with it. I have to use an additional cloth over it or just put a cloth in myself.

I’m giving this one star for the fact that I bought it to filter out fumes. The carbon filters are in 2 pieces. 2 pieces would not filter anything the air and fumes would simply take the path of least resistance. The mask is mesh so with a mesh mask the filter portion of it does not cover your face, mouth or the mask. So it would not filter out any fumes. The mask does stay on your face and it might (and that is a really big “might”)work well for bigger particles. I will be returning it because I honestly don’t feel like it would filter anything. The whole idea is to not kill brain cells.

Great masks. Good quality easy to put on don't get in the way of anything. Will buy again

Very thin product. Not quality manufacturer as any normal person expects when looking for this type of health care.

So the first thing I noticed when I opened this package is a pretty glaring flaw. There are NO ASSEMBLY INSTRUCTIONS. Especially when it comes to products that are made for people's health and safety, if there is ANY assembly whatsoever, it needs to have instructions. It took me a little while to figure out how to put this thing together in a way that was functional. The filter has no way of being secured save for with the valves which have been shown in other reviews to have issues falling off. Not hard to believe since they only are secured with a single quarter turn. I can definitely see these coming loose, especially in hard workouts or labor. I am an average sized woman and I struggled with the fit of this one being a little too big. Even with the strap in the back, it was constantly shifting and I was constantly having to readjust. The fabric feels really cheaply made and I would really like to see a way to actually slide the filter between the layers of fabric to better hold it secure in the future. The one positive I can say about it, is that it IS easy to breathe in. However, I'm not sure if that's necessarily a good thing. It doesn't feel as though the breaths I'm taking are actually going through the valves or filters at all so functionality-wise I'm not sure how well it is working as more than just another simple cloth-barrier mask. I'm going to be modifying it, personally. Sewing the filter in place or either cutting a small opening in the fabric layers to secure it in place. Pretty disappointing overall, truthfully.

product is great.