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Noise of Nebulizer Type Aroma Essential Oil Diffuser / Air Pump Noise
 
 
When you use the nebulizer type essential oil diffuser, you might hear there kinds of nosie from diffuser, and it depends on the design and quality of diffuser, and also might be related to your user behavior.
 
Noise of air jet
 
The design concept of nebulizing diffusers are mostly based on the principle of Bernoulli. A air pump generates compressed jet of air and blows across a small tube creates a vacuum that pulls the essential oil at the bottom of the tube to the top of the tube. The air flow blows across the surface of the oil and bring it to strike toward the inner surface of glass nebulizer, then break up essential into micro molecular. Basically, the noise of air jet is unavoidable, and louder noise normally means better atomizing capability in theory. But designer is still able to figure out a best combination to strike a balance between noise and atomizing performance by fine-tuning the glass nozzle design.








Noise of air pump
 
The micro air pumps operate via a motor that causes a rubber diaphragm to oscillate at high speed, producing a steady stream of air. Vibrations will be transferred throughout the pump when the diaphragm oscillated. So, it is impossible for air pump to be completely quiet as you wished. But we found many of the micro air pumps in the market place runs extremely noisy. It is mainly caused by cheaper components or material that they used or careless assembly procedure. A good air pump should run with acceptable micro noise and under 50dB and it will be declined to 5~10dB further when it is packed and well sealed into the base of nebulizer diffuser. Therefore, a good nebulizer diffuser will make you are hardly to hear the noise of air pump when operated.







 


Noise of covibration
 
When the rubber diaphragm of air pump oscillates, it will cause vibration. So, you might hear the resonating noise if you directly put the nebulizing diffuser on a hard surface, such as wooden or metal table. You can eliminate this noise by putting a piece of soft and thick cloth or sponge under diffuser, It will be helpful.








 
Why the air pump of nebulizer type diffuser is dead or get weaker quickly ? 
 
When you have used your diffuser for long time already, the frequent oscillation of rubber diaphragm will inevitably cause aging phenomenon and reduce the performance of air pump slightly. For a good air pump, it should keep 95% performance level at least if you had used it for one year long, and 85% above for two years. If your air pump is dead or get weaker quickly, it still mainly caused by cheaper components or material that they have used or careless assembly procedure.