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How can we use the air curtain correctly?

Views: 0     Author: Site Editor     Publish Time: 2022-06-01      Origin: Site


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The high-speed airflow of the air curtain machine can isolate the outdoor oil fume and odor from entering the room, and can also effectively block the outdoor dust from entering the room, keep the room clean, and create a fresh and comfortable environment.

  • Where are ordinary air curtains generally used?

  • Why do air curtains protect the health of users?

  • What are the requirements for improving the efficiency of the air curtain machine?

Where are ordinary air curtains generally used?

1. Hotels, shopping malls, theaters, hospitals and other places with relatively large flow of people: such places have relatively wide doors (generally not less than 3 meters) and relatively large flow of people, so large-volume electric heating air curtains should be selected. Therefore, if the power supply conditions are limited, and there is a central air-conditioning hot water source, try to choose a water-heated air curtain, which can fully play a role in energy saving.

2. Refrigerator, freezer: These places pay more attention to the actual utility of the product, so you can choose a natural air curtain with a large air volume, and the effect is very good

3. Constant temperature warehousing and logistics center: The door of the warehousing and logistics center is generally more than 4 meters, so the air curtain machine with ordinary air volume is difficult to achieve the expected effect, so the centrifugal air curtain machine with large air volume is generally used, and the wind resistance height meets 4.5 meters.

Why do air curtains protect the health of users?

1. Dust-proof and insect-proof: The air curtain machine generates high-speed airflow, forming a protective door, which can effectively block the invasion of dust, smoke, odor and insects outside, and keep the room clean.

2. Anti-smoke and harmful gases: The air circulation system of the air curtain can make every corner of the room strongly block the escaping of oily smoke and the pungent smell and harmful gases such as industrial exhaust from entering the room.

3. Balance indoor temperature: When the air-conditioning energy distribution is uneven due to the large space in gymnasiums, cinemas, entertainment venues, etc., the air circulation system function of the air curtain can be used to balance the indoor temperature.

What are the requirements for improving the efficiency of the air curtain machine?

1. A place with little outside wind (crosswind).

2. The indoor cold (warm) is sufficient and uniform.

3. The depth of the building is greater than the width.

4. The width of the air curtain is equal to or slightly larger than the width of the inlet and outlet.

5. There is no gap between the installation surface and the air curtain.

6. All entrances and exits of the building are equipped with air curtains.

7. In places where exhaust fans are used, such as range hoods or exhaust ports, a supply fan (return fan) should be set up to balance the positive and negative pressure difference, avoid convection and reduce the use effect of the air curtain.

Guangzhou Meihao HVAC Equipment Co. Ltd. has been in the HVAC business sine year 1969. Our staffs have more than 40 years’ experience on meeting customers' requirements and problem-solving practices.

NO.C105 Yuewang building, NO.1 Wangling section of 106 national road, Baiyun district








  • Professional after service

    With more than 50 years’ experience, we provide professional shipping service and after sales service including: booking vessel, protecting exclusive agency, trouble shooting, helping client with sales(such as making catalog), and so on.
  • Full access to market all over the world

    Our products have certification of CE, CB, ISO 9001, UL, RoHS, etc. Since 1969, our products have been sold to countries all over the world.  
  • Full ability to design and manufacture air curtains

    Our factory has experienced R&D team and full equipment to design and manufacture air curtains. We have well integrated production line which includes Metal workshop; Plastic workshop; Blower workshop; Motor workshop and Assembly workshop. These workshops are equipped with the most advance equipment and machines in our industry (including the laser cutting machine and numerical controlled machines for various purposes. Also we put in loads of efforts to make sure our customers have unique, original design. To make sure our customers always have the leading edge products in the business.
  • High standard quality control

    Our air curtains are with ISO 9001 certifications.
  • High quality products

    Our standard models are made better than international standards. For example our motor is made and designed by our R&D team, with full copper wire and temperature rise lower than most of others. That means our motor has longer service life. With professional design and manufacturing, our product air performance is at least 20% better than most of others.
  • Most complete product range of air curtain

    Our factory was found on 1969, started to design and manufacture air curtain since 1982.Our first air curtain model Classic C2. We are now having more the 50 air curtain product series, include:
    Ambient air curtain; Heating air curtain (electric heating and hot/warm water heating air curtain); Horizontal mount air curtain; Vertical mount air curtain; Ceiling mount air curtain; Special air curtain series. Such as vehicle air curtain which installed on refrigeration truck, revolving door air curtain, cold room air curtain, etc. Product length from 0.6 meters to 2 meter, if there’s special needs we can provide customize service for other length. And the air curtain casing materials include steel, stainless steel, plastic, aluminum, etc. 

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