Expensive, yes, but they do their job well.
--For those changing it for the first time, hold down the button with the little clock for a while so the machine understands that the filter has been changed.

I am changing the filter after 2.5+ years (basically when the dehumidifier indicated it). In the meantime, it is recommended to clean it with a vacuum cleaner for long-term maintenance and healthier air.

I have the impression that with the original filter, the air had a stronger sense of freshness. Overall, satisfied with the quality.

The filter protects your dehumidifier from needing maintenance, so some comments I read about hacks are invalid! It just needs to be cleaned with a vacuum cleaner only from the back regularly! At this moment, as I write this comment, it is worth 21 euros, a great price for what the dehumidifier-cleaner does in our space!

Honest filter that does its job but the price is quite inflated! Or you can get a cabin active carbon filter from Ford Focus MK2 that costs 10 euros and has the same dimensions! (I didn't tell you this)

Classic filter for inventor dehumidifier, does a good job, but it could cost much less so that we can change it as often as it says...

Conclusion from replacing an ionizer filter: the noise from the ionizer was significantly reduced and the air quality improved.

Changing the filter on an annual basis or even earlier depending on usage and location is necessary. In six months, you can see the difference in color and understand how well it filters the atmosphere.

The Inventor Atmosphere XL dehumidifier fits just like the original and is exactly the same in quality. Also, for just one filter, it had incredibly high-quality packaging! My dehumidifier works 24/7 on auto and I change it once a year.

This product replaced my previous dehumidifier filter. The only downside is the price, which is quite steep.

At first, everything was fine. After a while, the air that the dehumidifier emits started to smell, and I wondered where it was coming from. In the end, the filter smelled that unpleasant odor that recycled material gives off. Adding a little fragrance to the filter seems to have improved it..

I received exactly the filter I needed, with immediate shipping from the store, from Athens to Cyprus. The package was in perfect condition. As for the product itself, I have nothing to say, as I bought it to replace the previous one, for a dehumidifier, which is by far the best I could have. Surely if the price of the filter was lower, personally I would consider it an expensive price, it would be more affordable. But it is what it is. Overall, fully satisfied!

I have had it for 2 years and I clean the dust on the grid every 10-15 days with an electric vacuum cleaner, I haven't changed the HEPA filter yet and there hasn't been any indication for a change yet, also the filter hasn't turned black like in some others, it has just become slightly darker than before, but just a little!!! Strange;;;;;

Very good filter, cleans cigarette smoke quickly and effectively, as well as cooking odors.

Cleans the air and odors, it's a lifesaver for someone with allergies! A bit pricey but worth it!

In our case, with the Inventor Atmosphere XL 20L, because we cleaned the initial plastic filter from dust every week, the HEPA lasted for 4 months instead of the 3 that some people mention when they receive the indication to change it. We have been satisfied. It does the job and you can tell in the air that is produced after the HEPA filtering.

Genuine filter. In the photo, the old and the new

As a filter, it is very good but its price is steep if you consider that in order to have clean air and if you use it daily, you have to change the filter every 3-4 months

Ideal and compatible filter with the dehumidifier I have. The product description was accurate and informative, and the price was extremely satisfactory.

Although it has a slightly high price, it is big and seems to do the job it is intended for, finally giving the impression of a quality filter! With continuous 24/7 use, it lasts about 3 months.

Working the dehumidifier every night for a total of 10 hours for 4 consecutive months was worth the money. I bought a new one for 30€ and it does an incredible job of cleaning the air from odors and doesn't stuff up your nose when you have clothes drying inside the house. It fits in both the 20-liter and 25-liter models, like my own Inventor Atmosphere XL

Product that serves exactly the purpose for which it was purchased. I have been using it on a 24-hour basis since I bought it a month ago.

Very good both as a product and in its performance. Good cleaning every 12-15 days and will last for more than 4-5 months with 24/7 operation.

Also, I would like to emphasize that for the job it does, i.e. keeping bacteria, germs, etc., it is very affordable. When you can't get such a filter and every few months, then don't get a dehumidifier either.