3M 51131171720 Advanced Particulate Filter 2297, P100 Respiratory Protection, with Nuisance Level Organic Vapor Relief Pack of 2

Favorite filter for ragweed allergy season. I can actually go to work and not get sick. Since I am severely allergic to ragweed, as my children say, you don't go to the doctor often, and you don't go to the emergency room at all. It worked great for going into my house after a house fire. I could smell the burnt items, but I did not develop a cough or anything. The mask cleans well and did not retain the burnt smell. I tossed the filters and I already have new filters for this fall. It is easier to breath with this filter system compared to a N95 mask, and you can replace the filters. I keep my mask in a plastic bag and usually just use one set for the entire three months without problem. I did lose one filter once, so I keep an extra set for back up. Holding your hand over the filter site did not work as well as the filter! Now I just need a Darth Vader t shirt to wear when out in public......

Excelentes filtros contra el SARS-CoV-2 (COVID-19) debido a su filtración P100 (mejor que los filtros N95) Para ser usados en respiradores de la marca 3M de forma muy cómoda. El respirador qué se vende por separado garantiza en conjunto con estos filtros una muy muy alta eficiencia contra el coronavirus (si se adquiere una talla adecuada el respirador y los filtros universales P100) Su único detalle es que el filtro trae integrada una especie de malla plástica la cual en los bordes no siempre está tan bien cortada por lo que de repente puede rasguñar a la altura de los pómulos.

Por fin unos que vienen en su empaque original y por un precio muy accesible, excelentes filtros para el polvo que se produce en los cortes de madera.

After breathing in a bunch of welding smoke, I decided to try a slim respirator. Obviously real safety gear like 3M takes priority over everything else. After seeing all the creative and knockoff options I decided to try a filter swap on my existing 3M Niosh respirator with the plastic pink filters. These were a perfect fit. I didn't notice any unusual smells. I haven't tested them with hazardous air yet but after decades of experience, plus the perfect experience with the pink, I will blindly trust 3M on this. As for welding helmets, the big chunky pink filter is too big. These soft grey filters are perfect and I even have room to scoot the welding hood closer to my face! You're already reading a 3M filter review. You've already decided to not be an internet tough guy. You're going to make it past 55. This is not expensive, send it for the 3M.

These filters work very well and have been a great addition to my setup. I use them under a welding mask, and they fit perfectly without getting in the way or feeling bulky. Breathing is still comfortable, and they don’t restrict airflow too much, even during longer use. They provide solid protection and definitely make a noticeable difference when working around fumes and particles. The build quality feels reliable, and they hold up well with regular use. Overall, if you’re looking for filters that fit well under a welding mask and actually do their job, these are a great choice. 5 out of 5.