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How can the filter be cleaned

May 16, 2017

We all know that the high efficiency of the filter, the use of occasions may be very exquisite, even washing filter is not bad, it is best not to wash, unless you have a grasp of clean, cleaning performance does not change, and you have the test means to prove it. F6 more than the efficiency of ventilation filter filter material, its fiber is generally between f0.5 to f5mm, it is not strong, can not withstand rubbing, therefore, more than F6 of the filter is mostly one-time. In fact, when you look at the filter, you can tell if it can be cleaned. Today, Xiao Bian about how to clean the filter that can be cleaned:

Traditionally, cleaning is done with water or hand rubs. So, can filter cleaning filters should be strong to coarse fiber (diameter = F10). This kind of filter material is mostly low price nonwoven fiber felt. They are ideal materials for making G2 ~ G4 efficiency filter. Of course, you should also judge whether the auxiliary material of the filter is resistant to water.

More than 20 years ago, there used to be foam plastic filter, which can be cleaned, but its filtration effect is too bad, and now it is very rare. Nylon net and metal net can be cleaned, but the filter people say it is "blocking mosquitoes" and not belonging to the filter.

Most electret materials used for air filtration are hydrophobic chemical fiber materials. Under normal circumstances, water does not destroy the static electricity of electret materials. But the added detergent may have an impact on static electricity. In order to insure the cleaning of filters with electrostatic materials, some experiments should be carried out to confirm that water and cleaning agents have no effect on the filtration effect.

It's a good idea to use the ultrasonic principle to clean the filter. Ultrasonic cleaning does not rub, the filter material is generally not damaged.

In order to meet environmental protection, foreign countries have developed an ultrasonic cleaning filter line, but the current cleaning costs are not much lower than the production of new filters, so it is difficult to promote. If you are interested and conditional, you can try it. In the last two years, people in China have tried to use ultrasonic filters, and the biggest problem for the pilot is sewage treatment, rather than other technical problems originally envisaged. Ultrasonic cleaning is not a new technology, but there are new opportunities to use ultrasonic cleaning filters. The price of the filter after cleaning abroad is 60% to 70% of the price of the new filter (the filter is as good as new and has been tested strictly after cleaning).