How often do you have to replace the filter with continual use (8 hours a day x 5 days/ week)
1695065
I do not know what the manufacturer recommends but I do stained glass and use it about the same amount of time as you. I replace the filter about once a month.
1695066
I don't use mine all day everyday and it depend on how much solder smoke you are generating. Soldering small electronic parts is different than say using lots of flux and soldering stained glass. IF the effectiveness of the filter seems noticeably reduced, change it. By noticeable I mean do you notice the odor of the solder flux more as compared to when the filter is new. A brown residue will build up on the filter but that may be hard to see because the filter is black. One trick you can do to know when the filter is getting dirty is to cut a small piece from a coffee filter (maybe a 1 inch square) and place it on the front of the filter behind the grill. When you see it starting to get brown, change the piece filter. Don't cover the entire carbon filter with a coffee filter, it will reduce air flow too much. Another trick to make the filter both last longer and be more effective is to add a home made pre-filter made of polyester batting (used in quilts and pillows and available from hobby stores) To use, take a few square inches and sort of tease it apart into a thin and relatively uniform thickness that is the same size as the filter. Just place it in front of the filter behind the grill. The cabon filter only helps to trap and neutralize the chemical in the smoke (and that helps reduce odor) but it is not meant to be a super fine particle filter (which smoke is full of). Having the pre-filter helps remove more of the particles and make the carbon filter last longer. Be careful not to make the pre-filter too thick or air flow will be reduced. I find I can change the pre-filter 2 or 3 times before needing to replace the carbon filter. Since the polyester batter is cheaper if you make it the right thickness, you can save money AND have a better overall filter if you are will to do a little extra work/maintenance. BTW - I use the same polyester batting pre-filter trick in my aquarium to make the expensive carbon filter last longer and it also keeps the water much cleaner even in a goldfish tank.
1483003
First of all the cleaner the filter, the faster it filters. When it is new, it will filter the full amount in about 6 hours. After the filter gets some use, it will take a bit longer. I take mine out and wash them every 3-4 months and change them once a year.
1935922
Membrane every 2 years. Filters need to be changed more often--according to the amount of use.
1759577
Naturally, it depends on how much you use it, but we get at least a month or two out of each filter. We can tell by the taste when it needs to be changed.
253431
As recommended by Friis, you should change the valve filter every 60 days. The unit will include 6 replacement valve filters.
1147161
I find one site that sells cartridges (houzz.com) says "Each filter cartridge should be replaced within 45 to 60 days depending on usage. Today I talked to the UnitedStatesian distributor (not the Amazon distributor in Canada), and he says it's good for roughly 6-8 months showering 2 times a day.
363194
I replace mine about every 6 months. As long as you have a shutoff valve ahead of the filter it's an easy un-screw the old, screw in the new replacement operation. I put a bucket underneath it to catch any water during the replacement (very little spills out.) Takes a couple of minutes at most.
745341
With this particular filter, we change it every three months, I hope this helps :)
1651051
Our shower is used about 2-3 times daily. Our area has extremely hard water so our filters only last about 3-4 months. I change them when my skin starts to dry out (severe eczema,) or it smells heavily of chlorine.
1485216
This filter is intended to be changed every 12 to 24 months. It is recommended that the average household change it every 12 months for optimal performance and 18 months for optimal value.
1544113
The manufacture recommends replacing the filter every 6 months period. Personally, I replace the filter every 3 to 4 months. For your information, most water filter manufacturers including 3M recommends replacing filter every 3 months.
985491
Depending on the amount of use, your filters should last 3-6 months easily. You can greatly extend the life of the filter by using a small hand vacuum or dust blower to clean the filter regularly.
803285
I have had mine for a little over a year with no wear and tear. I wouldn't be surprised if the filter lasts for another 2 years. I put it through its paces, using it every other day for a few mins and for extended periods while cleaning once a month.
489409
I have used this filter the same way for about a year now. Single person use, drink a gallon daily, use it for cooking. I replace every 5 months.
1918300
The filter lasts for at least 6 months. If you don't use it much then it can last more than 6 months.
753296
I replace the filter about every 9-10 months. It runs 24/7 on fan speed -2 except for those weeks when the weather is nice and we open the house. I wash the foam pre- filter every month
793116
I would say it depends on the conditions at your home. We live up in the mountains where it is very dusty, so we check it at least once a month. We'll change it based on the amount of dust on the filter paper. We can generally go a couple of months before having to change it out.