My HM400 just has the Hepa Filter inside it which needs replacing. Is it really worth having the prefilter as well?
1842362
I think so, it traps the dust and would keep the more expensive filter cleaner. The pre-filter should be replaced once a year. It wasn't that difficult to replace.
769893
Yes, the filter pushes air through a charcoal pre filter &gt; a hepa filter &gt; UV light. All of which are replaceable. It's recommended to replace the pre charcoal and hepa filter every 6 months or so depending on use and how contaminated the air is. It's also recommended to take a vacuum to the filter every month to pull out the larger particles that may be lodged in it and extend filter life. When I looked for replacements they were not available on amazon, but easily purchased through the manufacturer's website.
769891
Yes, the filter pushes air through a charcoal pre filter > a hepa filter > UV light. All of which are replaceable. It's recommended to replace the pre charcoal and hepa filter every 6 months or so depending on use and how contaminated the air is. It's also recommended to take a vacuum to the filter every month to pull out the larger particles that may be lodged in it and extend filter life. When I looked for replacements they were not available on amazon, but easily purchased through the manufacturer's website.
505008
No, it has a synthetic fiber pad that sits underneath the bag chamber and that's it, if you want hepa filtering, look for a vacuum that states it clearly in the description, also I found the bags do not seal adequately and as such a lot of dust goes past the bag opening and gets sort of trapped in the synthetic mesh pad I described earlier.
719962
The hepa-filter last forever, if you keep the carbon pre-filter clean~ when I run it full blast 24/7, I vacuum the pre-filter, by laying it flat on the carpet, dirt side up, using the attachment hose without an attachment. after about 2 or 3 years the pre-filter gets kinda limp, then I change it. I think 4 pre-filters come in a box.
1879855
They also sell a pre-filter sock that installs over the primary filter. I think if I was in a dusty environment I would invest in that. It is not very expensive. Just a thought. Good luck.
1422592
Filters last different times depending on which one. Yes they are expensive. The most expensive is the main HyperHEPA filter which is around $200 and it lasts the longest. The PreMax is about $125 and lasts the shortest. The V5 is optional-it just absorbs odors-and lasts in the middle somewhere I think, it is around $100. The length the filters last is kind of governed by the unit itself. If you have it on more often, it will use it up faster. If you have it on higher speed, it will use up the life faster. You can scroll through the display for remaining hours on each filter. There is no stopping you from using filters longer or resetting the filter life at any time if you want to, but I always replace the filters according to the unit telling me to. To give an idea of life, I think the HyperHEPA will start out around 4000 hrs. Looking at mine right now, it shows the PreMax at 599 hrs, V5 at 2057hrs and HyperHEPA at 1599 hrs. It ABSOLUTELY has helped me sleeping and not waking up with a stuffy nose every morning. I would buy it again even if it was 3x the price. One tip is they make a prefilter prefilter called the PF40 (I know it sounds redundant but bear with me) which is for really dusty conditions. You can put the prefilter screen on the bottom at the air intake and this will pretty much double the life of the actual pre-filter. You can then change the filter screen as the kit comes with I think 5 of them and reset your pre-filter timer.
1259637
Yes, this is the pre-filter that catches dust, pet hair, and large particle items then the HEPA filter scrubs the air for all the smaller particles.And, yes, it helps the HEPA filter be more efficient and last longer. Usually we replace these carbon filters quarterly and the HEPA filter only needs to be replaced annually.
1316196
Good question. That pre-filter fit my model #50250-s, a large circular air filtration unit. Some of these pre-filters are "cut-to-fit" using tape or Velcro to secure the pre-filter onto the Hepa-filter, after you have cut the pre-filter to size. I was disappointed in that the pre-filter did not "bolt on", as the original pre-filter did. For an answer to your question, call KAZ USA, Inc. at 1 800 477-0457. Jim
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.
1720150
The hepa filter shouldn't have to be replaced for years. They can be washed out and reused, You might want to get one more to use when you rinse one (wet). I don't know where you can buy them . I will look on Amazon with make and model numbers.
716657
Yes and no. The vacuum has two filters. One filter sits behind the vacuum bag and you see it every time that you change the bag. This filter is not a HEPA filter and the MC-V194H filter does not fit. However, the second filter fits in a panel on the top of the vacuum and the MC-V194H filter does fit there. My understanding is that the second filter is considered optional and is there to reduce emissions. The first filter has a warning saying do not run the vacuum without the filter. I have had no success in finding a replacement for the first filter.
1496379
No. Sorry, they say under normal conditions, you should replace the pre-filter every three months, and the HEPA filter annually.
1172081
I think it's ok cos I have a sticker on the airfilter that says it uses a Hepa filter 24000 and prefilter 34002
452036
Yes, we have that Whirlpool air purifier & we just got a replacement filter a few weeks ago. The Hepa filter that came with it had been in it a year. We change the pre-filter every couple of months. I hope I have been of some help in answering your question.
762596
I am sure at some point the filter will need to be replaced, I have had my dust collector for about 18 months and it still works great. I clean the filter nearly every day (crank the handle that is attached to the top of the unit). I have been a little afraid to look at the replacement cost (putting my head in the sand so to speak). I looked before I bought the unit and I remember it was expensive but now after 18 months I am not sure I would want to live without the unit so the price of the filter has become a necessary expense when the time comes. PS; as well as the dust collector works you will also need an air filtration unit to clean up the dust you breathe. My shop is much cleaner since I added the air filtration machine (I used to have a fine layer of dust on everything) and I am sure my lungs are happier. I would like to tell you that the dust collector is more important than the air filtration unit but to be honest the need is to have both machines is equal. Sorry to attack your pocket book but you really do need both units.
200340
No real experience with this model. With other types it all depends on how long you run it and how dirty the air is. I have had hepa filters go from three months to a year. Vacuuming the hepa also helps.