


Air conditioning and ventilation systems are essential for creating and maintaining a comfortable environment in offices and homes.
Fans play a crucial role in air conditioning and ventilation systems, and selecting the right fan for each application is essential.
This article explains the characteristics required of fans for air conditioning and ventilation, practical examples of how they are used in office environments, and the different types of fans used in these systems.
This section outlines the typical applications of fans in office environments.
Low noise performance is one of the most important factors in air conditioning and ventilation systems for offices and homes.
Offices require a quiet environment to support focused work. When fans are too noisy, they can negatively impact efficiency and contribute to stress.
Selecting fans with excellent low-noise performance ensures a quiet and productive workspace.
Ventilation systems in moisture-rich areas, such as window frames and bathrooms, require fans with water resistance.
Using Splash Proof Fans ensures safe operation in wet environments and improves system reliability.
Learn More: What is Splash Proof Fan?
Offices often run air conditioning and ventilation systems for long hours, so cutting down on power usage has become an important challenge.
By choosing fans designed to reduce power consumption, you can not only cut costs but also help lower environmental impact and contribute to building a sustainable society.
These fans deliver high airflow while maintaining low noise and low power consumption. They are available in a wide range of sizes from 60 mm to 140 mm.

Noise level has been reduced by about 13 dB(A) compared to our conventional product*1.
Power consumption has been reduced by about 44% compared to our conventional product*2.
*1: Comparison between our conventional product (80 × 25 mm, Part number: 109R0812G401) and the low noise fan (80 × 25 mm, Part number: 9RA0812G4001).
*2: Comparison between our conventional product (92 × 25 mm, Part number: 9A0912G401) and the low noise fan (92 × 25 mm, Part number: 9RA0912G4001).
Featuring superior waterproof and dustproof capabilities, this blower provides high static pressure, making it suitable for intake and exhaust applications in systems with significant airflow resistance.

Compliant with IP68 protection rating for waterproof and dustproof performance.
Well-suited for intake and exhaust applications in systems with significant ventilation resistance.
PWM control enables precise adjustment of airflow direction and speed, including reverse operation. A single unit can switch airflow direction, contributing to cost reduction and space savings.

| Airflow direction | Rotational speed [min-1] | maximum airflow [m3/min] | maximum static pressure [Pa] | Noise level [dB(A)] | Power consumption [W] |
| Positive direction | 5,450 | 2.10 | 285 | 49 | 3.0 |
| Reverse direction | 5,450 | 2.05 | 280 | 52 | 3.0 |
Supervised by: Ryuji Ueki, Group Manager, San Ace Group, Sales Division, SANYO DENKI CO., LTD.
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