# Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers

Treat water in compatible ultrasonic humidifiers with the Leemone A250-2P cartridge, supplied as a two-pack.

- [Original product page](https://www.ofertitastop.com/us/product/leemone-a250-2p-aqua-demineralization-filter)
- [View offer](https://www.ofertitastop.com/us/visit/leemone-a250-2p-aqua-demineralization-filter)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-18T06:51:48.436Z
- Brand: Leemone
- Model: A250-2P
- SKU: ofertitastop-us-123882
- Category: Home & Garden > Household Appliance Accessories > Humidifier Accessories > Humidifier Filters
- Source store: amazon US
- Active deal: Yes
- Price: 26.99 USD
- Previous price: 29.99 USD
- Discount: 10%
- Rating: 4.6 / 5
- Reviews: 11

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

If you need a replacement demineralization cartridge for a compatible BONECO or AIR-O-SWISS ultrasonic humidifier, the Leemone A250-2P is sold as a two-pack. Its stated purpose is to treat the water used in the humidifier, making compatibility the key detail to settle before choosing it.

The product listing describes the cartridge as helping soften and purify water. It is a humidifier accessory, not a standalone room air filter, so its role is tied to using it in a supported humidifier.

## At a glance

The pack includes two A250 Aqua Pro filters. Leemone says each cartridge lasts up to six months, but that is a stated maximum rather than a guaranteed replacement interval. How long one lasts may depend on use, and the listing does not give a more specific schedule.

For a practical setup, this is the kind of replacement to consider when maintaining a compatible ultrasonic humidifier at home, in an office, or in a classroom. The product description also mentions dry indoor air, smoke, and fine particles as use contexts, but the cartridge itself treats humidifier water, it should not be mistaken for a device that filters those things from room air.

## Fit and sizing

The listed compatible models include BONECO and AIR-O-SWISS 7133, 7135, 7142, 7144, 7145, and 7147, as well as the U200, U300 series, U600, U650, U700, 2055, 2055A, and E2441. The listing specifically excludes U7131, U7136, U7137, and U7138. Is it a fit for your setup? Match the humidifier’s model number against these lists before buying, a similar-looking unit is not enough to establish compatibility.

The product details give dimensions of 3.15 x 3.15 x 4.53 inches and a weight of 1 pound. Those are listed product dimensions and weight, not a guarantee that the cartridge fits a humidifier model outside the stated compatibility information. If your model is not named, the available details do not confirm that it will work.

## Tips for day-to-day use

Use the A250-2P as a water-treatment accessory in one of the listed ultrasonic humidifiers, rather than as a general-purpose filter. The two-pack provides a second cartridge for a later replacement, while the stated “up to six months” lifespan can help with planning without establishing an exact change date. The source does not specify installation steps or a water-quality threshold, so follow the humidifier’s own directions for cartridge placement and upkeep.

It makes sense if you already have a listed compatible model and want a replacement cartridge in a two-pack. Compared with choosing a humidifier without a separate demineralization cartridge, this option is specifically for owners whose unit accepts the A250 type. It’s not for you if your humidifier is one of the four excluded U713 models, or if you need a standalone air-cleaning device, neither use is supported by the listing.

## Final verdict

The Leemone A250-2P is a focused replacement purchase: two water-demineralization cartridges for a defined range of BONECO and AIR-O-SWISS ultrasonic humidifiers. Its clearest decision point is model fit, followed by whether a two-cartridge pack and a stated lifespan of up to six months suit your maintenance plans. If your humidifier is not on the compatible list, the product information does not provide enough to recommend it for that setup.

## Images

![Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers — 1](https://www.ofertitastop.com/i/V34_jQg0B0K48BHaKApMaJBxRW2qGSOsqTW1kvNfZ_3eOYV28a4djue8jGDk4d9_aY1s5tix6mOqfbR16PGJcon9wF44H5CsSdRdi_BLD4clNBsW_aL18wTaDg.jpg)

![Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers — 2](https://www.ofertitastop.com/i/erwTdGAbF7rqAkbHmU0qwJ6hMTGBGfRGV-wpS0u5BsMXXjwmN0W3exIAWpTSRL287wnWFS9VZ2y4k-cnTOxVc9fG4uFFBgsZ2IJVkmmIAEYUJSMZFqUllz5MoA.jpg)

![Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers — 3](https://www.ofertitastop.com/i/EyTBuml8iUx5Tz1ND57tAfLyUz62sxpyJEIwiEDUulF_rlYPiADvSxViYJ3VXDrsDg0_R0hKGe8O0KF_piuW__R7pgzvvWSQGJEZOLnmKBGsNdSOESQ_dWrEbA.jpg)

![Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers — 4](https://www.ofertitastop.com/i/sORzzlKVxquWUGsUDKHvuKwC2KOx41AOoac2exz_SthPeA3Ahm9ekSuZsM5ls5OTEDzjbylH0TRbGBf5WDlkh6_TLNw0BLdj8Cwk_SZBsLjX2TVC5dK1L9DVOg.jpg)

![Leemone A250-2P Aqua Pro Demineralization Filter, 2-Pack for BONECO Humidifiers — 5](https://www.ofertitastop.com/i/uV3QrvR_902lxMDrtTVMuZLTUDXhjoSCGTl7aPgksJH1hPSz1AjCnYKZ-ZUj6DPqrvEAS--FQJ8zwQGfPWwQRiYjNteNYyjkHjR_CdH6yl2xjKp8LGxW4077vQ.jpg)