Air Exchange Unit

Required Fresh Air Volume for Civil Comfort Air Conditioning Rooms

Calculation Example:

For a computer room with area S=60(m²), ceiling height h=3(m), and occupancy n=10(persons):

• If calculated based on fresh air volume per capita, taking q=70(m³/h) per person:
  Fresh air volume Q1 = n·q = 10 × 70 = 700 (m³/h).

• If calculated based on air changes per hour (ACH), taking p=5 (times/h):
  Fresh air volume Q2 = p·S·h = 5 × 60 × 3 = 900 (m³/h).

Since Q2 > Q1, Q2 (i.e., 900 m³/h) is adopted as the parameter for equipment selection.

Standard Models & Customization Services 

The performance data below represents our standard model series. However, as a specialist manufacturer, we understand that every project is unique. 

We offer comprehensive custom solutions tailored to your exact specifications.

Ceiling Series Overall Dimensions Drawing

Overall Dimension Table

Product Overview

Meet our Air Exchange Unit - it's built to keep the air in your building fresh and balanced all day long. Think of it as your building's lungs, constantly bringing in clean outdoor air while pushing out the stuffy indoor air. This simple but effective process is what makes our air exchange ventilation system so valuable for offices, factories, and other commercial spaces.

What really sets this system apart is how it handles temperature. Using practical heat exchange ventilation system technology, it captures energy from the air that's leaving your building and uses it to adjust the temperature of incoming air. This means your HVAC air exchange system doesn't have to work as hard, saving you money on energy bills while keeping everyone comfortable.

We've kept the design straightforward and practical. The unit doesn't need special installation requirements and works quietly in the background. It's one of those products that does its job so well, you'll almost forget it's there - until you notice how much better the air feels in your space.

Product Details

Key Features & Benefits

• Steady Airflow & Energy Savings
  This air exchange ventilation system pulls in fresh air while pushing out stale air at the same rate. That balance keeps indoor pressure stable—no slamming doors or weird drafts. Plus, it uses a simple heat exchanger to grab energy from the outgoing air, so your HVAC air exchange system doesn't work as hard. You get fresh air without high energy bills.

• Cleaner Air Coming In
  We've included good filters that catch dust and pollen before outside air enters your space. You'll notice the air feels fresher and cleaner, which makes a real difference for people with allergies or in dusty areas.

• Quiet Enough for Any Room
  We get it—no one wants a noisy machine. That's why we picked quiet fans and added sound-absorbing materials. Install this Air Exchange Unit in a office, classroom, or clinic and you'll hardly know it's on.

• Built to Last & Easy to Care For
  We use solid materials that hold up over time. And since nobody likes complicated maintenance, we made sure the filters slide out easily and key parts are within reach. A quick wipe or filter change is all it usually needs.

• CE Certified—Safe & Globally Accepted
  The CE mark isn't just a sticker. It means this unit meets strict European standards for safety and environmental care. If you're shipping or using equipment abroad, this certification makes things simpler and more trustworthy.

Technical Specifications

Why Choose Shunda?

We started Shunda back in 2005, right in Shandong where China's HVAC industry is centered. What began as a small workshop has grown into a proper manufacturing operation, but we've kept that hands-on approach. Our 70,000 m² factory is where our team of 230 people—including 27 full-time engineers—design and build equipment that actually works.

We make HVAC systems that do their job year after year. Our range covers over 70 different products, all built to handle real working conditions. The ISO certifications we maintain (including ISO9001 and ISO14001) matter to us because they prove we're serious about consistent quality—it's not just paperwork for show.

Under the "Jinxin Shunda" brand, you'll find our equipment running reliably in projects across China, from college buildings to commercial centers. These days, we're also working with partners in Southeast Asia and Central Asia. We've learned that what really matters isn't just selling a product, but making sure it performs exactly as promised. That's why we focus on practical designs, straightforward installation, and being responsive when our clients need support.

We're not the flashiest company out there, but we deliver equipment that works, service that's helpful, and quality that lasts. Give us a try and you'll see why customers keep coming back.