Does it help preventing air pollution? and whats the validity of the filters?
480280
It depends on what you want to use it for if you have severe allergies I would say to get something that you would be comfortable wearing most of the time. This mask is good for temporary situations it has a filter than helps with bigger particles and odors. I hope that is what you wanted to know.
350897
Yes, it works well. I use it in Beijing where air pollution is pretty heavy, about 2-3 days the mask will turn from white to grey. I think that means it blocks a lot pm 2.5.
248529
It is not a dust or particulate filter. It generates sanitizing hyper peroxides which reduce levels of viruses, bacteria and mold in the air handler, ductwork and on environmental surfaces. You still need air filtration. I use a whole house pleated air type filter in the return air plenum just before the air handler. The combination works great together.
1259638
Yes, we use this carbon pre-filter. It protects the Hepa filter from having to be changed as often. These are high quality filters and we change them every couple of months. The Hepa we only change once a year. Of course, how often you have to change them depends on your personal environment.
1413045
I don't really know. I would assume the foam filter also stops fine debris from going through (like dry wall dust and such) too.
89414
Absolutely. It is a very heavy carbon filter unlike probably any other air filter you've seen. The smaller particle filter is heavy duty (wraps around the core) and can be vacuumed clean. With cleaning every 3 - 4 months, it will last and performs well. Our previous one was used at least 5 years.
24139
Spray Paint & Smoke - it depends what you want. For either situation these only filter out the particulate - NOT the actual harmful vapor contents. So its helpful in each case - but you still need lots of clean air in either case.
2262569
Yes. It circulates the air, and filters it, so it would help with some of your dust as well.
1488687
Not sure about the things you are asking about. My understanding is that the filters are for filtering out heavy metals from the water such as lead, murcery etc. It definatly makes the water taste MUCH better regardless..hope that helps!
686182
It depends on what you're doing - I got this filter because it seems to be pretty all-encompassing: http://www.amazon.com/3M-Low-Maintenance-Cartridge-Purifying-Respirator/dp/B00AEFCP0E/ref=sr_1_1?s=industrial&ie=UTF8&qid=1392297594&sr=1-1&keywords=6006+filter It's been effecticve for fiberglass insulation, sanding plastics and composites, spray painting, etc.
1479324
Yes you can, but as others have stated it may restrict air flow. Using clean filters will be the best.
1840948
I have a fairly powerful unit so I did not have a problem with the filter. It is pretty dense so it will reduce some of the airflow. But on the positive side, its easy to keep clean and reuse.
863833
Hello Sandy. Filters do a lot to the photographs. They eliminate the glare the sun causes, The haze the air shows sometimes, the greenish skin tones. They also protect the cameras lens from getting scratched.
2169599
I've used this item in vents and in my air purifiers...they are wonderful collecting lots of dust and other particles that have some size...I have never usedthis in an air conditioner...I think you might want to take CTgreens suggestion and try one thats a lot finer for the air conditioner...Give it a try...you'll have answer soon...you can always use this filter for other things...They are wonderful to use in ADDITION to filter in HVAC vents...You will be surprised!!!
522900
NO. Do not use these. These will NOT PROTECT YOU FROM ORGANIC VAPORS. They are only meant to filter out an odor that would be safe to breathe without the filter. Hence the label "Nuisance Filter". Crazy and confusing. You need a properly designed filter for those dangerous chemicals and a website forum is not the place to get that information. You should contact 3M directly.
1624633
Well, you want filters because you don't want dust going INTO your computer. You could use it for outtake but there's no benefits and yes, it will restrict air flow, but not that much.
105644
Whichever type of filters you choose to purchase depends on your own needs. The particle filters work exceptionally well IF you are not confronted with heavy smoke, gases, or the like. Your choice!