how long does the filter last?
2090304
I used mine non-stop for about 90 days before I started thinking I could use a new one.
1103066
The filter comes with a small liquid type of timer with adhesive that attaches to the filter and you activate when installing it.Depending on the number of persons the filter may last 4 - 6 months. You will know when to change it by a noticeable drop in pressure.
1403285
I haven't yet had to replace the filter. I don't use it that much. My filter is a permanent filter and I just empty it in the trash when I use it.
2279326
The unit has a timer that reminds you to change the filter every 6 months. I changed the filter for the first time this month (I've only had my GermGuardian 6 months) but after I did I realized the filter wasn't all that dirty, probably could have easily been wiped off and would have lasted at least another 3 months. We have a large dog but live in Seattle where there's not a TON of dust in the air. We run it 24/7 on medium.
429948
depends on how often you run it and how dirty your air is. Seems like mine lasted about 9 months being run daily. You just wash the pre filter
796045
I've only had mine for 2months..I'm not sure,but other reviewers have said they have vacuumed or lightly brushed the filter to clean.
1757825
If you're using tap water then know if it's alkaline. The higher the alkalinity, the more often you will need a filter, every 3 to 6 months. If you use filtered or reverse osmosis water, then a filter will last 8-12 months. This also allows the mist to circulate in the air longer. This is what I do and it reduces costs of buying filters.
1931172
I work in the lab thats why i can check the quality of my water from this filter. In my community this filter can last for 4 years. By the way I have a pre filter connected to this unit. The life of the filter is subjective to the water quality and your usage. Take an optional water quality testing.
745342
The company that installed my new system said that this filter would last one year. But when they came out to do an inspection after one year, the guy said that I should have changed the filter earlier. I now change the filter every six months. So far, that seems to be about the right amount of time.
2003470
It really depends on your water. The higher the number from the wand (ppm) of your water the faster the filter will need to be changed. Our water unfiltered is about 34 and after 5 months we are on the same filter. We use at least two pitchers of water each day, usually more.
1064808
I've owned a unit about two years. I replaced the filter after year 1 and just replaced it the second time. The unit seemed to work OK, but the filter does get a little "grungy". I'd say replace at least once a year (I only run the unit during the winter and early Spring months-November to April)
2172573
It was my understanding that the filters lasted the life of the machine. I clean it once a week with a vacuum cleaner...use the brush attachment.
1918298
The filters last more long than, but i personally change it every time I notice the water pressure of the filtered water decreases which usually happens after 5-6 months but it also depends on how much water you drink a day
753297
Approx. every six to eight months, running it 8 hours a day in my bedroom. I live in the southwest, in a dry dusty environment, so it would probably last longer under less severe conditions. Also, I must clean the pre-filter at least once a week.
813258
It depends on the type of filter. This one has lasted about 2 months next to a puppy crate.
618252
As long as the filter, which is short, touches the water. Maybe 6-8 hours. My biggest concern is that it doesn't screw onto the bottle even though it's supposed to. It doesn't sit upright on the bottle and in danger of tipping over.
937381
about 6-8 months if you have about 5 glasses a water a day. You will notice a slight change in taste when the filter is used up.