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

Input:
Question: How long does the carbon tap filter last?
Document: Clean, pure drinking water made right there in our kitchen! We filter a gallon or two at a time and just top off the Jerry can each time we use it.I am telling you, this unit is amazing, if you keep the carbon filters changed every so often then you will have the best drinking water available.And talk about easy to use!
I purchased the lifesaver Jerry can in August of last year and what can I say but awesome...I used it all through the summer on camping trips in tents, campers and my RV.
Fill, pump, drink.DURABLE, DURABLE, DURABLE!The cost is steep, but put it into perspective:1 Jerry can ~ $50.001 Name brand filter ~ $150.001 Steripen ~ 100.00-----------------------------Total cost of 3 items needed to be as effective as one Lifesaver?
Usually, I don't like to read instructions, but in this case decided it might be helpful, and luckily I did. When you go to use it for the first time, you need to prime it and clean it out. The whole set up process took maybe 5 minutes, and now I am ready to filter 5,300 gallons of water when I go camping.
I have been waiting patiently for awhile to get one of these, since they are usually unavailable on amazon. When one popped up as available, I grabbed it right away. The reason I did is easy, I did my math. If you look at the cost per gallon, liter, whatever, and compare this to any other filter that has the ability to filter out the bad stuff, you will quickly see that this is by far the cheapest option.
The Lifesaver Jerry Can will perform all three steps in one simple device.It also works excellent for car a or vehicle camping water filter and storage solution as well as a device which can be tucked away unused in the garage or basement ready for a domestic water emergency (domestic water supply availability is subject to electrical power outages in many areas).Enough theory, how does it work? Well, it works flawlessly!
For a family of 4 that would mean over 660/1320 gallons or 660/1320 days continuous use. (assuming 1 gallon of drinking water per person per day and depending on which filter used).When comparing the cost of the Lifesaver Jerry Can against other filtration systems such as the Katadyn Expedition or Endurance grade filters with the additional expense of a UV system that would be needed for the deactivation of viruses and even the water carrier itself i.e.
The Lifesaver filter appears to be the only mechanical filter on the market that is also capable of filtering viruses due to the very small 0.015 micron filter size as compared to other well known and reliable systems such as the Katadyn Pocket water filter which has a 0.2 micron Silver Ceramic filter cartridge. The Katadyn Pocket filter fact sheet also mentions that the mechanical 0.2 micron filter can also filter radioactive particles which are larger than 0.2 microns.
A radioactive particle at 0.015 microns diameter will have 2700 times less radioactive potential than a 0.2 micron particle.The Lifesaver system is probably the best CBRN water filter commercially available. Even the bacterial reduction performance shows a very impressive Log 7.5 reduction. In reality that is getting to the point when no individual bacteria can be measured passing through the filter. Other conventional filters including UV systems such as the Steripen are being measured in Log 3-4 reduction i.e.
You cannot go wrong with this. We purchased for emergency use and are happy we did. A= 10 out of 10
Answer: yes