- humidifier filters
- automobile filters
- air filters
- hepa filters
- water filter
- hvac filters
- panel filters
- Vacuum Cleaner Filters
- cooker hood filters
- pocket filters
- Hair Dryer Parts
- filter bags
How to choose a high-quality HEPA filter?
When choosing a high-quality HEPA filter, the main considerations are as follows:
First of all, the larger the extension area of u200bu200bthe filter, the better.
What is extended area? The extended area is the total area of u200bu200bthe folded air filter material after it is flattened.
The larger the extension area, the slower the wind speed of the air through the filter, and the better the filtration efficiency.
Secondly, the smaller the resistance, the better. The smaller the resistance of the filter material, the more labor-saving the fan of the purifier can work and the less noise.
Some people may mistakenly believe that resistance is inversely proportional to filtration efficiency, but this is not entirely the case. The current filter manufacturing technology has developed in the direction of low resistance and high efficiency.
Then look at the appearance details. The appearance details are the embodiment of the manufacturer's production technology level.
Whether the frame of the filter screen is flat and whether the filter paper is flat and compact, the uneven frame is easy to cause air leakage.
In addition, the quality of the filter material can also be distinguished by folding the filter paper in half. The filter paper of good quality can be restored to its original state by its own elasticity, and the filter material of poor quality will have obvious creases.
For ordinary consumers who lack professional testing methods, observing the appearance details of the air filter is a simple and effective method.