Bottom Line
The inhibitor cartridge’s mold‑prevention claim isn’t confirmed by the product specifications. The Smart Humidifier 735S performs well, but there’s no evidence it actually prevents mold.
DREO markets the Smart Humidifier 735S with an inhibitor cartridge that supposedly blocks mold growth. The claim appeals to health‑conscious users who worry about bacteria and spores in indoor mist devices.
We examined the official catalog facts for the humidifier to see whether they support the smart humidifier 735s mold prevention claim. Below is what the data tells us and where the information stops.
What the Official Specs Say
The Smart Humidifier 735S 11L offers a 100‑hour runtime, a 2.9‑gallon tank, and 5 μm ultrafine mist created by 2.4 MHz atomization. It operates quietly at 26 dB in sleep mode, provides a 6‑foot mist reach, and includes smart app and voice control. The product description highlights no white dust and precise humidity adjustment, but it does not mention any anti‑mold technology or an inhibitor cartridge.
Smart Humidifier 735S 11L
Because the catalog facts omit any reference to mold‑blocking components, we cannot verify the effectiveness of an inhibitor cartridge. The absence of such details means the claim remains unsubstantiated from the manufacturer’s own data.
- If mold prevention is a priority, pair the humidifier with regular cleaning and proper room ventilation.
Verdict Summary
- Mold Prevention Claim: No catalog evidence confirms the inhibitor cartridge stops mold. Treat the claim as unverified until DREO provides specific data.
- Humidifier Performance: The 735S delivers consistent, fine mist with quiet operation and smart controls. It’s a solid choice for humidity control, independent of mold concerns.
- User Guidance: Maintain regular cleaning, use filtered water, and ensure adequate room ventilation. These steps help minimize mold risk regardless of any cartridge.
Key Product Details
- Smart Humidifier 735S 11L: 100‑hour runtime with a 2.9‑gallon tank; 5 μm ultrafine mist; 2.4 MHz atomization; no white dust; smart app/voice control; sleep mode at 26 dB; RGB night light. Long runtime and fine mist improve comfort while quiet operation makes it suitable for bedrooms, but the specs give no proof of mold inhibition.
- RO Water Filter 113: Removes 99.99% of contaminants, improves taste, features real‑time TDS monitoring and automatic refilling. Clean water is essential for any home appliance that uses liquids; a reliable filter ensures the humidifier’s water source stays pure, reducing potential microbial growth.
While the Smart Humidifier 735S excels at delivering comfortable, quiet mist, the anti‑mold cartridge claim lacks supporting specifications. Users should rely on proper maintenance and clean water to keep the device healthy.




