Midea Air Purifier Filter Replacement: 5 Signs That It's Time for a Change

Decreased Airflow

One of the most obvious signs when it's time to replace the filter on your American air purifier is a decrease in airflow. You may notice that the air purifier isn't producing as much airflow as it used to, or that the air in the room isn't circulating properly.
As the airflow decreases, the performance of the air purifier is affected. The purifier takes longer to clean the air in the room, and the air quality may not be as pure as it should be. Inefficient airflow also strains the air purifier's motor and other internal components, which may shorten its lifespan.
To determine if reduced airflow is a sign that you need to replace your filter, you can do a few things. First, you can physically inspect the filter. If the filter appears dirty, clogged, or discoloured, it's a sign that the filter needs to be replaced. Additionally, you can feel the strength of the airflow by placing your hand in front of the air purifier's vent. If it feels like the airflow is weak or significantly weakened, the filter is not working optimally.

The filters in air purifiers play a vital role in trapping and adsorbing allergens such as pollen, dust mites, pet dander, and mould spores. As the filter becomes dirty and clogged over time, its ability to effectively capture these allergens diminishes. As a result, these allergens can return to the air, triggering an allergic reaction and causing symptoms to worsen.
If you find yourself sneezing, coughing, having itchy eyes, a runny nose, or respiratory discomfort more than usual, this may indicate that your air purifier filter is becoming less efficient. When the filter is unable to capture allergens adequately, the allergens become suspended in the air, causing an increased allergic reaction.
To confirm whether the worsening of allergy symptoms is related to the filter, consider the following factors. First, evaluate your symptoms when you are in a place with an air purifier and compare them to your symptoms when you are in another place without a purifier. If your symptoms decrease when you leave a room with an air purifier, the filter is no longer effective in removing allergens. Also, visually inspect the filter for dust and debris build-up, as this is an indication that the filter needs to be replaced.

One of the most unpleasant signs that it is time to change the filter of your Midea air purifier is the presence of a foul odour in the room. Instead of eliminating the odour, a dirty or clogged filter can contribute to the spread of the odour, which can lead to an uncomfortable indoor environment.
If you notice lingering odours such as cooking odours, pet odours or mouldy smells even with the air purifier running, this is a good indication that the filter needs to be replaced. Particles that build up on the filter can cause these odours to linger and be released into the air.
To confirm if the odour is related to the filter, perform a visual inspection. If you notice a build-up of dirt, dust and grime on the filter, it is likely the cause of the unpleasant odour. In some cases, filters can even emit a foul odour when they are heavily soiled.

Dust buildup in your home is a big sign that it's time to replace your American air purifier filter. Old or clogged filters are ineffective at trapping dust particles in the air, which leads to an increase in dust on surfaces throughout your living space.
If you notice excessive dust accumulating on your furniture, floors, or other surfaces despite regular cleaning, this may indicate that the filter is no longer effectively capturing dust particles. This can lead to poor indoor air quality and may aggravate respiratory conditions or allergies.
To confirm whether the dust build-up is due to a dirty filter, you can visually inspect the filter itself. If you see a thick layer of dust and debris on the surface of the filter, this is a clear indication that the filter needs to be replaced.

A dirty or clogged filter can put unnecessary strain on the air purifier's motor and other internal components, reducing its overall efficiency. When filters become clogged with particles and debris, they impede airflow, causing the purifier to struggle more to draw in and purify air.
A common indicator of reduced efficiency is increased noise levels. If an air purifier suddenly becomes louder or begins to make unusual noises, this could be due to a clogged filter causing the motor to work harder.
Another sign to look out for is an increase in energy consumption. A dirty filter will force the air purifier to consume more energy as it struggles to maintain proper airflow and operate efficiently. This can lead to higher electric bills and wasted energy.
To confirm whether a decrease in air cleaner efficiency is due to a dirty filter, visually inspect the filter for accumulated dirt and debris. If the filter appears clogged or visibly dirty, it's time to replace it.