1mg= 0.001ppm

PPM is the concentration of parts per million, 1PPM = one part per million
1mg = 0.001ppm

Ultrasonic (Ultrasonic), audio f=1/T sound wave or vibration (Vibration), its frequency exceeds the range that human ears can hear (20Hz~12KHz).
Ultrasonic is widely used in many fields such as medicine (detection, treatment), industry (cleaning, welding, implantation), military (ranging), etc. due to its high-frequency characteristics.
So Ultrasonic is defined by the audio frequency that is so high that the average human ear can’t hear it.
Ultrasonic waves can be vibrated in air, liquid or solid.

Ozone, also known as super oxygen or active oxygen, is composed of three oxygen atoms. It is a non-toxic, colorless gas with a fresh smell of grass. It is also a powerful oxidant and bactericide second only to fluorine in nature. Its bactericidal power is longer than normal. The chlorine is 600 to 3000 times higher.
 

1. Power ultrasonic: applications include welding, crushing, cleaning, emulsification, etc., which only transmit power for functional output and do not accept feedback signals.
2. Detecting ultrasonic waves: Most of the ultrasonic waves used in this method are used for medical examinations, assisting in medical diagnosis and treatment, and the frequency is usually 2M~15MHz

Ultrasonic cleaning machine
For cleaning parts, it is usually best to use ultrasonic equipment for processing efficiency. Its principle is to use the ultrasonic vibrator to vibrate in the water to cause the molecular structure of the water to collide and peel off the residual foreign matter on the surface of the part to be cleaned to achieve cleanliness. The effect is that the parts that usually contain oil stains can be cleaned by applying hot water.

Ultrasonic welding machine
Can be used for welding (fixing, punching, implanting, cutting burrs, etc...)
General plastic (not cotton) materials can be used for the above purposes. Ultrasonic welding applications can eliminate the use of glue (strong adhesive) to stick in the past, making it more efficient, stable and fast...
 

Ozone O3, at room temperature, it is a colorless gas with a special smell. Ozone has a fishy smell. Inhaling a small amount is good for humans, and inhaling too much is harmful to human health! Ozone is widespread in nature, and its concentration varies under different conditions. It is not easy to be noticed.
The ozone layer in the atmosphere, which is now generally understood, is a natural barrier to block the sun's ultraviolet rays. It is produced by sunlight with a specific wavelength spectrum of light irradiating the air. After a thunderstorm, people will breathe a special fresh taste, which is actually the increase in the concentration of ozone in the air, which is easy to be noticed by people. The increase in ozone concentration is because lightning (high-voltage discharge) ionizes oxygen in the air to form ozone. The decomposition rate of ozone varies with heat, light, moisture, and PH value, and the decomposition rate is accelerated due to the action of metal oxides and other catalysts. When active bacteria encounter ozone, the lethal concentration of ozone will make it immediately lose its vitality. Don’t feel bad because it is called “ozone”. Ozone smells like in the forest, under a waterfall, or in a big place. The faint scent of grass can often be smelled after a thunderstorm. There are two types of ozone in the universe, one is "natural ozone" and the other is "environmental ozone."

Ozone is a widely used bactericide, which can kill bacterial propagules and spores, viruses, fungi, Staphylococcus aureus, etc., can destroy botulinum toxins and toxins and rickettsiae, etc., and also has a strong, in addition to mildew, fishy, smelly and other odors.
Ozone is a strong oxidant. The role of ozone in the air can not only deodorize, but also keep food fresh, and it will return to oxygen after oxidation without leaving residue, but it should be noted that it is strongly irritating. When the concentration is 0.005ppm, It will lead to dizziness or unsmooth breathing.