We reached out to the biggest brands to find out more about support policies, and some are better than others. It serves to stop the growth of airborne bacteria, while the filter whirs along to suck in everything else it can. It is heavy but not unmanageable, as it weighs around 13kg, and can remove up to 18l of water per day.

I do see the below mentioned in the description, however I could not find any credible source to verify it. Going back towards that filtration system, the machine visibly sucks up dust when you look close enough. For colder months, it has an auto-defrost function, so, if the temperature drops below freezing, the inside of the dehumidifier will heat up to prevent the water from freezing.When running for just 10 minutes at a time, we found that the Levoit Core 400S Air Purifier not only detected poor air quality levels but also made the air even cleaner than it had been prior to the test. However, because it’s a smaller device than air purifiers for large rooms, it may still cost less to operate than a bigger unit. Plus, there’s an automatic switch-off function, so there’s no need to worry if you leave it running when you’re not around. However, if you need to move it around, the design features a built-in handle, making it far less of a chore. All models make a bit of noise in use, but some are far louder than others, particularly on the highest setting.

Remember that you'll need to close the doors and windows of the room with the air purifier so it works effectively.This is good news for anyone with allergies, as it will remove airborne irritants such as pollen, mould spores, pet dander and even odours.

After bonding together, the particles become too heavy to float and will drop to the floor or nearest surface to be cleaned away.We tested the Levoit Core 300s in a house with four cats and it did seem to improve the general air quality (we set it to auto and leave it on 24/7).

If you are on a standstill, it will visibly bring down the AQI but the reduction is slower when you are on the move. It looks like a tumbler, except for the part that it has vents and a three-stage filtration system, which we’ll get back to later. Besides being so easy to use, the touching act would appear instinctive and will allow you to navigate the AP 1. The first button lets you cycle through the target humidity in five per cent increments from 40 to 70 per cent.

Many of best air purifiers offer app connectivity so you can read reports on how the air quality of your room has changed over time, change settings remotely, and even check the moisture and temperature levels of your room.