1. Working principle and mechanism of action:

* Working principle:

The working principle of the nebulizer is driven by the rapid oscillation of the circuit, which makes the piezoelectric ceramic transducer oscillate resonantly, thus driving the rapid oscillation of the microporous metal mesh. It converts the electrical energy into mechanical energy and generates ultrasonic vibration, the shock wave squeezes the liquid in the medicine cup, making the liquid pass through tiny mesh on the metal mesh and pop-up quickly, forming countless tiny nebulized particles, which are guided to the patient’s respiratory system through the inhalation mask, so as to achieve the purpose of inhalation treatment.

* Mechanism of action:

The respiratory system is an open system, after the liquid is nebulized into particles and inhaled by the patient, the drug mist can directly adsorb on the patient’s mouth, throat, trachea, bronchi and alveoli, and is absorbed by the mucous membrane to    achieve the purpose of treatment.

2. Product composition:

It mainly consists of a main unit, a medication cup,two inhalation masks

3. Applicable people:

It’s suitable for breathing administration of adults and elderly, infants and children should be used under adult supervision.

4. Application scope:

Nebulized medication for therapeutic use.

5. Intended environment:

It’s suitable for medical institutions (such as hospitals, clinics, health centers, etc.) and home nebulization.

6. Contraindications:

Patients with acute cardiopulmonary failure or airway obstruction are prohibited. Do not use the nebulizer if you are allergic to aerosolized drugs.

7. Product performance:

Power supply : 2×1.5V AA alkaline batteries, or 5 V 1A(adaptor with IEC60601- 1 approval) Power: < 3.0 W
Ultrasonic oscillation frequency : Nominal frequency of the nebulizer is 110 KHz, and the deviation of the ultrasonic oscillation frequency of the  nebulizer from the nominal frequency is ≤ ±10 %
Maximum nebulization rate: ≥ 0.2 ml / min
Temperature inside the sink : ≤ 60 ˚C
Operating noise: ≤ 50 dB ( A weighting )
Low water level prompt or shutdown: the instrument will stop automatically after the liquid atomization is completed
Continuous working time (battery life): In the fully charged state, the nebulizer could be able to work continuously for 30 minutes.
Median particle size of the mist particles: The median size of the nebulizer mist particles is 3 μm, and the error should not exceed ±25%;
The proportion of the mist particles with a diameter of 1um to 5um should be greater than 50%.

Distribution of equivalent volume and particle size of fog particles  Test conditions: temperature range: 23 ± 2 C, humidity range: 56 % ~ 59 %; The composition of the test solution is 0.9 % sodium chloride solution.
(test data may vary with test conditions and drug solution)
Nebulization rate: Low, medium and high
Maximum capacity of medication cup: 8 ml
Product size: 48 ( L ) X 64 ( W )X 126 ( H ) mm
Weight: About 98.6 g ( excluding battery )
Operating environment
Temperature: 5 ˚C~40 ˚C
Relative humidity:
≤ 80 % , non-condensing
Atmospheric pressure: 86.0~106.0 kPa
Transportation/storge environment
Temperature: -20˚C ~ 55˚C
Relative humidity:
≤ 93 % , non-condensing state
Atmospheric pressure: 70.0~106.0 kPa

8. Configuration list:

Note: the above parts are necessary for normal use of the product and comply with relevant standards.

9. Key components list:

The key component of this product is an ultrasonic transducer.