Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: How long does this filter work for before needing replacement?
Document: Have used these while working on a house with mold issues. Being rather allergic to mold (exposure resulting in a day long migraine with nausea) I needed a filter that would help to keep the bad stuff out. These filter have resulted in a month worth of migraine free work. Great product. Would strongly recommend using.
These 3M P100 particulate filters where an exact replacement for the ones that came with my 3M 6000 respirator.I find they work much better than the standard pinch-fit dust masks I used to use for filtering out the sanding dust generated in my shop. There always seems to be a slight plume of it wafting around in the air, even when dust collection is in use. The price I paid per pair for these filters here on Amazon was also very reasonable as well, so would definitely reorder again when needed.
I bought these filters for some work I was doing in an old building filled with asbestos and other harmful chemicals and despite the horrible conditions of the site, I was able to spend well over five hours straight without needing to step outside. Compare that to just five minutes before me choking up, and I'll say that that alone shows the value of these filters.Much much better than using  a disposable mask.
Used this filter during archaeological excavation of desert cave where dust is an extreme issue...work great even in 100 degree (F) work.
The filter came and was what I expected. I was doing some dusty work around the house, and this is exactly what I needed. I am also able to use it while welding or woodworking.
I have been using this filter for years and its fantastic. It performs just like the manufacturer says. Its a must have if you do vacuming,or work in a dusty enviroment like yard work; especially if you are Asthmatic or sensitive to dust and other irritants like dust mites,dander, mold, pollen etc.
These filters in my experience work very well for pollen, well for mold and not very well for dog dander.I've had allergic reactions to dog dander, right through the mask.Animal dander has a lot of very small particles, so it's hard to filter out.The IQAir, a good (expensive) HEPA air cleaner, filters out dander pretty well, using a huge amount of filter material.
This filter is a big step up from the n95 white disposable masks I formally used. I consider those junk--even the ones with a built in valve do not work like my respirators. The P100 filter is easy to breath through, there is no need to use a lesser filter. I am totally happy with this filter and associated respirators. I am getting allergic to the wood dust and this product is very helpful to me.
These filters are a direct replacement for my 3M particulate half mask. A great mask w/filters to wear when you're woodworking and sanding. Helps to keep from breathing in all the dust. Good price for a pair of these filters which included free shipping. Thanks
I replaced the old ones I had with these, and I have no issues with them at all; they work well.
Answer: yes