3M P100 Advanced Respirator Filter 2297, NIOSH Approved, 1 Pair

If you are in dust or shop grinding ,you need this filter, good filter

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......

Great in dust

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.

Work great, use them in my welding class still take up a amount of space under the hood. making it difficult to get full coverage.

“The filtration efficiency of selected NIOSH-approved particulate N95 and P100 filtering facepiece respirators (FFRs) and filter cartridges was investigated against the viable MS2 virus, a non-pathogenic bacteriophage, aerosolized from a liquid suspension. Tests were performed under two cyclic flow conditions (minute volumes of 85 and 135 L/min) and two constant flow rates (85 and 270 L/min). The mean penetrations of viable MS2 through the N95 and P100 FFRs/cartridges were typically less than 2 and 0.03%, respectively, under all flow conditions. All N95 and P100 FFR and cartridge models assessed in this study, therefore, met or exceeded their respective efficiency ratings of 95 and 99.97% against the viable MS2 test aerosol, even under the very high flow conditions. These NIOSH-approved FFRs and particulate respirators equipped with these cartridges can be anticipated to achieve expected levels of protection (consistent with their assigned protection factor) against airborne viral agents, provided that they are properly selected, fitted, worn, and maintained.” Gardner PD, Eshbaugh JP, Harpest SD, Richardson AW, Hofacre KC. Viable viral efficiency of N95 and P100 respirator filters at constant and cyclic flow. J Occup Environ Hyg. 2013;10(10):564‐572. doi:10.1080/15459624.2013.818228 With that being stated, I’m putting my trust in NIOSH P100. Compared to the 2097 and 2297, the 2297 is indeed easier to breathe through. From the beginning of year, when this crisis was rising, I’ve been using my stockpile of 2297, which was primarily used for Fiberglass Sanding, as a means to avoid airborne disease. My first job, I’m a repairman for boats and surfboards, but it’s my second job, Private Medical Transporter, where it’s extremely useful when transporting gurney and wheelchair patients.

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.

3M Advanced Particulate Filter 2297, P100 Respiratory Protection: I used these filters with my 6200 respirator pre-pandemic for solvent/paint airbrushing in my plastic model making hobby. I KNEW this combo was effective for pandemic usage when sales were restricted to government agencies & first responders for most of 2020. Since then I've re-ordered a few sets of filters whenever I see them close to $10./set. They attach/detach quickly & smoothly. Though the incoming particles they stop aren't visible, it's noticeably harder to breathe in after (rough est) 100 hours use. So obviously, SOMETHING is being caught & retained. Another plus is their filtration specs are much better than the cheaper, more common, but obnoxious looking hot pink series. 10/24/21 - here in Los Angeles we're still masked up with the rules becoming even stricter next week. Many people ask about my 3M respirator & filters. I refer them all to Amazon.

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.

Yo uso estos filtros para humos de soldadura simple de tubería de cobre, para insecticidas domésticos en aerosol y ciertos pegamentos que desprenden olores molestos, como el cemento para pegar PVC y en general me funcionan muy bien. Aunque estos filtros NO protegen necesariamente para COVID 19 mucha gente les ha dado ese uso, es de gustos sentirse seguros. Los filtros son dos en el empaque y vienen completamente sellados. los compre en junio y su caducidad es hasta 12/2023. Dependiendo de tu actividad no está de más usar unos lentes protectores. Vienen con un manual completo donde especifica usos y contraindicaciones que te ayuda mucho. Todo bien por parte de Amazon.

Los uso para barniz de madera, thiner y nitrocelusa diluyentes, es perfecto puedo trabajar mas tiempo incluso en areas no ventiladas

Un poco difícil de insertar en la mascarilla pero cumple su función.