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How an Aroma Diffuser Reshapes Your Living Space

Monday, 01/19/2026

Technical Deep Dive: Precision Engineering Beyond Simple "Mist Generation"
Evolution of Three Generations of Atomization Technology

Technical Deep Dive: Precision Engineering Beyond Simple "Mist Generation"

 

Evolution of Three Generations of Atomization Technology

 

1st Generation: Thermal Evaporation (2008-2015)

 
  • Principle: Heating plates heat essential oils to trigger volatilization.
  • Critical Flaw: High temperatures damage the active molecules of essential oils, resulting in a 40-60% loss rate of key components such as linalool and limonene.
  • Current Status: Obsolete in the professional market, only remaining in low-priced product lines.
 

2nd Generation: Fan Diffusion (2013-2020)

 
  • Principle: A micro-fan forces airflow through essential oil-impregnated filter elements.
  • Advancement: Room-temperature diffusion preserves the full integrity of essential oils.
  • Limitation: Diffusion radius ≤ 2 meters, with aromatic concentration decaying in a gradient manner.
 

3rd Generation: Ultrasonic Cold Mist (2018-Present) ★ Industry Standard

 
  • Core Technology: 2.4MHz piezoelectric ceramic plates break down water and essential oil molecules into ultra-fine particles of 1-5 microns.
  • Three Core Advantages:
    • Complete Preservation: Cold mist process causes no damage to molecular structures.
    • Uniform Diffusion: Ultra-fine particles achieve full-room even distribution via Brownian motion.
    • Humidity Regulation: Helps maintain the optimal indoor humidity range of 45-55%.
     
 

Lab-Grade Forward Look: 4th Generation Microcapsule Targeted Release Technology

 
  • Technical Principle: Aromatic molecules are encapsulated in pH/temperature-sensitive microcapsules.
  • Breakthrough Value: 72-hour sustained release, delivering a unique "aroma memory" experience.
  • Expected Commercialization: 2026-2028
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Prdoucts Categories
FAQ
OEM/ODM Services
What is the difference between OEM and ODM services?

OEM (Original Equipment Manufacturer) means we produce products based on your design, specifications, and brand. ODM (Original Design Manufacturer) means we offer ready-made products or create new ones based on our own R&D, which you can rebrand.

About After-sales Support
How to handle product complaints or quality issues?
1、 Complaint acceptance channel Official Customer Service Hotline It is recommended to prioritize calling the enterprise customer service hotline (which can be found on the official website), as the fragrance industry usually provides exclusive after-sales channels Offline service outlets Some cities have physical service points that can carry problematic products for on-site testing (advance reservation is required) 2、 Quality problem handling process Preliminary diagnosis Product batch number, purchase certificate and problem description shall be provided (such as essential oil leakage, equipment non spray, etc.) Electronic fragrance devices require video recording of malfunction symptoms Solution Problem type handling method Performance failure can be returned or exchanged within 7 days, and free repair within 15 days Essential oils that have deteriorated can be exchanged with an unopened certificate 30% compensation for appearance defects or replacement of accessories 3、 Dispute resolution channels When negotiation fails Complain to the Consumer Association (National 12315 Platform) or apply for quality appraisal Cross border orders can be entrusted to third-party testing agencies such as SGS Legal rights protection If counterfeit products are involved, triple compensation can be claimed in accordance with the Consumer Rights Protection Law 4、 Preventive advice Keep the complete packaging and shopping receipt (electronic voucher requires screenshot) It is recommended to take an unboxing video before using aromatherapy products for the first time Note: Specific policies are subject to the latest announcement on the official website of Saint Denis, and different terms may apply to special customized products
SDL303
How often do I need to add essential oils?

The frequency of addition depends on the duration of use and the concentration of fragrance. Generally, using 150ml of essential oil for 8 hours a day can last for about 1-2 weeks.

SDL308
How to deal with situations where fog does not appear?

Suggest checking the remaining essential oil and cotton core status, or executing the cleaning mode through the APP. If the problem persists, please contact after-sales service.

C004
Does the equipment produce noise when it is running?

The operating noise of C004 fragrance machine is as low as 25 decibels, with almost no sound interference, which will not affect work and life.​

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