Frequently Asked Questions

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Ozone Generators

What we have been using are high quality ceramic plates coated with films. Some of our ozone plates have also been covered with stainless steel meshes. Such treatment can overcome the problems like the uneven distribution of ozone, being prone to cracking, poor insulation, short service life, etc. They can also be easily cleaned with water or preferably, alcohol.

Yes, this is a question that end customers often ask while purchasers rarely care about. It is certainly not safe to breathe a high concentration of ozone. Therefore, except for very low ozone yield models that meet EPA guidelines, we recommend using ozone in environments where there are no person, animals or plants. In addition, it is recommended to allow at least 30 minutes for ozone diffusion before re-entering the room. Therefore, it is a good time for an ozone treatment while you are out. An ozone generator will not pose any health risks as long as it is used following the user manual.

You can. All our products are made in our own factory with a high level of quality control measures. You can contact us and hopefully we can be your supplier.

All our machines are made in China, with all parts and components carefully selected from our cooperative partners.

We believe that with our own manufacturing plants, our products are highly competitive in pricing. But if you find similar products with much lower pricing on the market, there is a good chance they will have problems in the quality of their components and their manufacture. Or maybe it is because they used oxygen as the feed gas rather than air that we used. To make it clear, you can contact us. We will provide you with the details of our products.

No, because we conclude the business with you through foreign trade. It is not complicated to use an ozone generator. If you have any problem in using an ozone generator, you can contact our customer service at any time. They will provide you with timely answers.

Similar to other customized products, ozone generator customization has the following advantages:

  •  From the casing to the ozone module, from the indicator light to the switch, customers can choose all the parts and components if the product according to their preferences.
  • Although it can be slower than mass production, customers can guarantee that every part of the product is specified by themselves.
  • Through the selection of parts and components, quality of the products can be better guaranteed.
  • In the future sales of products, in the competition of other conventional products, customized products have more chances to stand out.

Plasma and ESP Filter

An ESP (electrostatic precipitator) is a device that uses static electricity to remove particles from the air stream.

When a stream with dust or ash passed through the region with high voltage electrodes, the electrodes will transfer electrons to the particles, making them negatively charged. As the particles in the airflow continued to flow toward the direction of stack exit, they will go through the area where positively charged plates are placed. In this region, particles will be attracted to these positively charged plates. In this way, particles carried in the stream will be stuck to the plates.

An electrostatic precipitator can typically remove up to 99% or more of the particles in exhaust gases.

1. It will achieve an easy collection of trapped dust and particles, some of which can be reused. Doing so saves material and protects the environment.

2. Since it provides very high cleaning efficiency and success rate (>99%), it will not cause any obstruction for airflow.

3. They are versatile and can work for a wide range of applications.

There are two types of ESP: WET ESP and Dry ESP.

When there are ash or cement dust particles in the airflow, a dry ESP should be used. A wet ESP is used to remove wet particulates such as resins, paint, or acids.

No. Because power is equal to volts times amperes. Although there is high voltage in the plates in an ESP, but the amperage is low. As a result, ESPs are very energy efficient and cost only a few dollars per hour to run.

Negative Ion Generators

Negative ions are odorless, tasteless and invisible molecules that we inhale in large quantities in certain environments. They are more likely to be found near mountains, waterfalls and beaches. Some studies have shown that negative ions can help ease depression and boost mental energy. By binding to particles in the air, they can increase the weight of the particles and let them fall to the ground.

We don’t have enough information to support this opinion. Some medical literature suggests that high levels of anions are not always good for health. However, there is no specific negative health effects from a controlled level of negative ions. Many negative ion generators have been on the market for many years without causing any health problems.

For bronchial asthma, negative air ionization therapy cannot fundamentally cure the problem. But it is true that the symptom can be quickly relieved. This is because negative ions have a certain level of bronchial dilatation function. Some hospitals do use air ionization therapy to treat bronchial asthma.

This is often interpreted that negative ions have an effect on the autonomic nervous system.

We have received feedback that using a negative ion generator can help with depression, but this has not been scientifically proven. Negative air ionization therapy can produce a certain level of positive effects. But negative ions are not drugs. Whether a medical treatment is needed, you should consult a doctor.

There were no reports of negative effects of a negative ion generator on pregnant women. But if you are still nervous, you can choose to turn off the machine to calm.

No studies have shown that negative ions have a worse effect on babies than on adults.

High Voltage Generators

There are many applications of high voltage generators, among which the most common ones are taser and stun guns or powder coating guns.

The capacitor used in the stun gun can generate an electric charge and release it onto the electrodes. Electrodes are two conductive metal plates placed in a circuit with a gap between them. Since the electrodes are placed in the direction of the circuit, there is a high voltage difference between them.

A high voltage generator is typically installed at the front end of a powder coating gun. As the powder passes through the gun, the high pressure generator will give the powder an electric charge. The charged powder can better adhere to the surface to be coated with the existence of high voltage electrostatic field.

In a taser, the combination of a high voltage generator and a rechargeable battery can deliver a strong electric shock over 40,000 volts to a person. The strong shock can cause the offender to experience a strong sensation of electric shock, which will temporarily incapacitate the offender for a short period of time.

Ignition Transformers

An ignition transformer is used to ignite a mixture of gas and air by delivering a high-energy spark to the end of the ignition electrode rod. They can take 120V AC and transform it into 10, 000V AC to ignite a mixture.

Ignition transformers have multiple features, some of which are as follows:

1. There are two main kinds of ignition transformer, respectively electronic ignition transformers and inductive ignition transformers.

2. The manufacture of electronic ignition transformers involves the infusion of vacuum.

3. Inductive ignition transformers can be customized to meet applications including oil and gas burners.

4. The function of an ignition transformer is to amplify the voltage needed by the electrodes of ignition.

Excessive moisture in the air can cause problems. Surface moisture on the ceramic insulator can cause arcing between terminals or between terminals and the ground, which will damage the ignition transformer. If moisture enters the interior, it may cause internal arcing within the ignition transformer, which can also cause damage or a premature failure.


There are more than one ways to do the test. The most accurate one is to do it with a voltmeter which can measure up to 10,000 volts. When the input voltage is 120V, the output voltage should be around 10000 volts. If it is lower than 9000V, it means that the ignition transformer is weak and needs to be replaced.

Car Battery Chargers

It depends by the charger. Some smart car battery chargers can switch to maintenance mode when fully charged while some basic models cannot.

A suitable car battery charger should be selected according to the voltage of the battery. The more current a charger can deliver, the faster the battery can be charged.

It is advised to select a car battery charger based on battery size. Using a smaller charger than recommended will result in longer charging time and will not ensure the performance and service life of the battery. Charging a battery with a larger charger will not do the charging in a healthy way and will affect the performance and lifespan of the battery.

Yes, the charger will get hotter than what it is during a bulk charge phase.

We suggest not to. Both lead-acid and lithium-ion batteries require their own car battery chargers. The use of wrong types of car battery charger will not do anything good and may even cause da

It is determined by the type of your charger. Normally, the connection between the charger and battery is safe before the battery is fully charged. However, most battery chargers cannot guarantee a safe connection to the battery without a time limit. For safety, it is recommended to disconnect the battery from the charger when it has been fully charged.

Although there are differences between batteries, most car batteries today require a minimum of 14.5V to be fully charged. You know what, your car alternator will continuously charge your car battery at 14.4V when the car runs.

Standard wet cell batteries are still the most commonly used lead acid batteries. They are generally not sealed.

The charging voltage is determined by the battery. Most automotive and marine batteries are 12V, while some motorcycle and lawn mower batteries are 6V. Voltage information can be acquired by checking the battery or the manual of the battery. Charging voltage and current are set by the manufacturer of the battery. Deviation from the recommended settings can lead to undercharge or overcharge of the battery, which will affect the performance and shorten the service life of the battery.

If your battery can no longer be charged, or can’t be fully charged as before, it’s time to replace it

Diodes & Bridge Rectifiers

A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction.

A rectifier is a device that converts alternating current into a single-directional direct current.

The specific uses of diodes are mainly as follows:

1. Rectify the voltage
By using diodes, AC current can be converted to DC current. A single diode or four diodes can convert 110V household power supply to DC current by composing half-wave or full-wave rectifier.

2. Diodes and capacitors
Diodes and capacitors can produce different voltage multipliers to produce small AC voltages and multiply them to produce high voltage output.

3. Diode used in flashlight as light source
LED flashlight is an illuminating light-emitting diode. It will glow as long as there is a positive voltage.

4. Photodiode
A photodiode get current or light through a collector, such as a mini solar panel, and converts it into an electric current.

A rectifier is a device that converts alternating current into a single-directional direct current.

Bridge rectifiers function in the following ways:

  1. Provide power for electrical appliances
  2. Work together with a transformer
  3. Provide polarization voltage in welding applications
  4. Used in AM radios
  5. Function in electric circuits
  6. Used for modulation
  7. Used in voltage multipliers
  1. Its rectification efficiency is 2 times of half wave rectifier.
  2. Due to the low ripple voltage, when it works, a bridge rectifier uses a simple filter circuit.
  3. It has a high transformer utilization factor (TUF).

The efficiency of a bridge rectifier is defined by the ratio of the DC output power to the AC input power applied to it.

Flyback Transformers

A flyback transformer is also known as a line output transformer. They were originally designed to produce high voltage sawtooth signals at relatively high frequencies. In modern applications, they are widely used in switched-mode power supplies in low-voltage and high-voltage power supplies.

  1. CRT TV
    Flyback transformers are used in CRT televisions to control the horizontal electron beam of a cathode ray tube. Through flyback transformers, modern television use components that produce a stable supply voltage.
  2. Aeronautics
    A lot of aviation equipment needs to be used at a specific frequency to make sure it doesn’t break down. Flyback transformer can protect the equipment by providing high voltage electric supply.

  3. Telecommunication
    Flyback transformers are used in telecommunication equipment to convert power supplies. DC to DC power conversions are common in telecommunication, especially in switching power supplies.

  4. For converters and inverters
    Although electric converters and inverters work at different frequencies, flyback transformers help convert low-voltage current to high-voltage current.

  5. For industrial equipment
    Supporting a wide range of industrial equipment, flyback transformers can be used to improve efficiency and performance. They are widely used in industrial equipment such as motors, generators and pumps.

Due to the sensitivity of the products, all products will be packed in anti-static bags and boxes. This will ensure the safety in the transportation process.

To ensure the safety and timeliness of the delivery, we usually choose to use FEDEX, DHL, UPS, TNT and EMS. The delivery can also be made according to the customer’s request.

Regular product samples can be delivered within 1 week. The lead time for an order with less than 1000 pieces is 2 weeks. For an order with more than 1000 pieces, please contact us to get the accurate lead time.

For custom products, product samples can be delivered within 1-2 weeks. The lead time for an order with less than 1000 pieces is 2 weeks. For an order with more than 1000 pieces, please also contact us to get the accurate lead time.

Our delivery service can cover all over the world. After the sales contract has been signed and the payment has been made, we will ship the order in the usual way or the mode of transportation specified by the customer.

You May Also Want to Know

Cnxhe has ISO9001 and CE certificates. All of our products meet or exceed the standard requirements set by the certifications.

All products from Cnxhe are made in China.

You can access our Alibaba store at Or, you can contact us by emailing us at [email protected] before the purchase. All our products will be shipped from our warehouse. They will be delivered by FEDEX, DHL, UPS, TNT and EMS to ensure the safety and timeliness of transportation. Delivery can also be arranged according to the way you specify.

For larger items such as ozone generators, plasma and ESP filters, car battery chargers, we will properly pack them with strong cartons and packaging foam before delivery. For smaller items like ozone generator parts, negative ion generators, high voltage generators, they will be packed in anti-static bags and boxes. This will ensure the safety in the transportation process.

We support multiple payment methods. You can go to our Payment Methods page for details.

Regular product samples can be delivered within 1 week. The lead time for an order with less than 1000 pieces is 2 weeks. For an order with more than 1000 pieces, please contact us to get the accurate lead time.
For custom products, product samples can be delivered within 1-2 weeks. The lead time for an order with less than 1000 pieces is 2 weeks. For an order with more than 1000 pieces, please also contact us to get the accurate lead time.

We promise a 1 year guarantee for our products from the date of purchase.

If you find any problem when you receive the order, you can Email us at [email protected] or send us a message on the Contact Us page. We will help you decide how to solve the problem.

If you are not satisfied with the product you receive, you can send the order back within 15 calendar days. The order to be returned must be unused and in their original packaging. Please contact us and get permission before returning the order.

Our delivery service can cover all over the world. After the sales contract has been signed and the payment has been made, we will ship the order in the usual way or the mode of transportation specified by the customer.

We will be very glad if you can join us and become one of our distributors. You can reach us by emailing us at [email protected], and we will send you the application materials.

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