Product Details
Product Overview:
Our company manufactures bidirectional fresh-air ventilators—also commonly referred to as fresh-air ventilation units—which are integrated ventilation and air-purification devices that combine mechanical supply and exhaust airflow. They simultaneously facilitate a two-way air circulation by introducing fresh outdoor air while expelling stale indoor air, thereby achieving efficient indoor–outdoor air exchange.
It continuously supplies filtered, clean fresh air to the indoor space via its built-in fan and filtration system, while simultaneously exhausting indoor pollutants such as carbon dioxide, formaldehyde, odors, and PM2.5, thereby addressing ventilation challenges in enclosed spaces and enhancing indoor air quality. Some models equipped with a total heat recovery function can also reclaim the cooling or heating energy from exhaust air, reducing the energy consumption of the HVAC system and balancing ventilation needs with energy efficiency, making them suitable for a wide range of residential, commercial, and industrial applications.
Product specification and model reference:
The specifications of bidirectional fresh-air ventilators are primarily categorized based on their rated airflow. Common specifications for residential and commercial models are as follows:
| Airflow specifications ( m³/h) |
Applicable Scenarios |
Typical Parameter Reference |
| 150~250 |
Small-sized homes, apartments |
Power 40–80 W, noise level ≤ 35 dB(A), connection pipe diameter φ100–125 mm |
| 350~500 |
Large-sized residential units, small commercial shops |
Power 80–150 W, noise level ≤ 40 dB(A), connection pipe diameter φ150–160 mm |
| 600~1000 |
Office, restaurant, small and medium-sized |
Power 150–300 W, noise level ≤ 45 dB(A), connection pipe diameter φ160–200 mm |
| More than 1,000 |
Large shopping malls, factories, and office buildings |
Power 300W and above; customizable airflow and static pressure, suitable for large-scale ventilation systems. |
Note: Model naming conventions vary across brands. For example, brands such as Lüdaofeng and Huandu Tupu use a combination of airflow rate, functionality (e.g., total heat recovery / unidirectional flow), and installation type (ceiling‑mounted / floor‑standing) to designate their models. For instance, “ERV‑D350” denotes a ceiling‑mounted fresh air ventilator with a 350 m³/h airflow rate and total heat recovery.
Scope of Product Use:
Bidirectional ventilation units are suitable for a wide range of applications, primarily including the following categories:
1. Residential and Home Scenarios:
Various types of market-rate homes, villas, apartments, and more—especially in areas where windows cannot be opened for ventilation after renovation or where outdoor air quality is poor—can achieve 24-hour silent ventilation, effectively removing formaldehyde and unpleasant odors while enhancing residential comfort.
2. Commercial Office Scenarios:
In high-occupancy spaces such as office buildings, offices, and meeting rooms, it effectively reduces indoor carbon dioxide levels, alleviates “air-conditioning illness” and the symptoms of oxygen deficiency and dizziness associated with enclosed environments, and enhances workplace productivity.
3. Commercial Service Scenarios:
In restaurants, hotels, gyms, beauty salons, KTVs, and other venues, it can swiftly remove cooking fumes, unpleasant odors, and excess moisture, improving indoor air quality while reducing air-conditioning energy consumption.
4. Special Use Cases:
In facilities such as hospitals, laboratories, school classrooms, underground spaces, archives, and computer rooms—where air cleanliness and ventilation rates are subject to stringent requirements—certain custom‑designed models can meet specialized operational needs, including corrosion resistance, explosion protection, and high static pressure.
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Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
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