I. What is the difference between AC and DC fans? What should be noted when using?

Ion fan according to its put is the electrode (discharge needle) used in the form of high pressure can be divided into two categories of AC and DC, AC and high frequency type and ordinary AC type (commercial frequency), DC is divided into continuous DC type, DC pulse type.

The difference between AC and DC ion fan is particularly important to note is the difference in ion balance, AC in addition to electrical appliances due to the same discharge needle both generate positive ions and generate negative ions, so even if the discharge needle in the long-term use of wear and tear, the ion balance will not have a big change in the ion balance performance is better.

DC type in addition to electrical appliances due to the discharge needle by their own independent positive and negative poles, close to the use of the ion balance is poor, in addition to the discharge needle in use by the influence of the environment and the needle of the different degree of pollution will affect the balance of ions, especially after long-term use of the discharge needle, the positive pole and the negative pole of the degree of wear and tear of the needle is different, although the cleaning can not be corrected by the ion balance.

The difference between AC and DC ion fan is that the AC type in addition to electrical appliances on a discharge needle can alternately produce positive and negative air ions, ionization electrode by the discharge needle and grounding electrode together, DC type in addition to electrical appliances in the discharge electrode does not need a grounding electrode, the discharge electrode by the positive and negative independent of their own discharge needle composition. In the absence of external wind (such as fans, compressed gas, etc.) occasions, DC type in addition to electrical appliances compared to the AC type in addition to the electrical distance to be far away, in the presence of external wind, in addition to the electrical distance depends mainly on in addition to the structure of the electrical appliances, the size of the air volume and the strength of the high-voltage power supply. As the discharge needle will be contaminated after long-term use, directly affecting the de-electricity performance and ionic balance, so the use of the electrode should be regularly cleaned de-electricity electrode section, especially DC-type in addition to electrical appliances in addition to the discharge needle is more susceptible to contamination, compared to AC-type in addition to electrical appliances cleaning should be more frequent, and the positive pole and the negative pole and the degree of wear and tear of the discharge needle is different, you need to do a periodic ionization level detection, in the discharge needle wear degree of seriousness on the timely replacement of Replace the discharge needle when it is badly worn.