FAQs

Generally speaking, our price term is FOB Guangzhou, if you want to do CIF or CFR, we can calculate and quote for you.

There is ready stock for our regular & hot selling models. Other models may take 5-15 working days, it's according to the quantity.

Our inspectors will take quality control of each production process, also you can come to our factory to make inspection on the goods before shipment.

100 pcs for trial order, different items have different MOQ.

Customized service is available, simply tell us your ideas and the engineers here will try our best to meet your requirements.

Yes, of course. But the MOQ of each item must be 200 pieces above.

Usually, payment</=1000USD, 100%T/T in advance; payment>1000USD,30% T/T in advance, 70% balance before shipment or by L/C.

Be our guest.

One year warranty available for machine body. If any problems within three months, you can apply for new machines.

· An air curtain is a fan-powered device that creates an invisible air barrier over the doorway to separate efficiently two different environments, without limiting the access of the people or vehicles.

· The most common use is a downward-facing blower fan mounted over an entrance to a building, or an opening between two spaces conditioned at different temperatures.

Many retailers employ an open-door trading policy as it allows unimpeded accessibility for their customers.  Adopting this policy brings its own issues as cold drafts are likely to enter the building, increasing energy costs. The installation of an air curtain ensures a clean environment and protection against cold drafts entering and warm air leaving the building, therefore saving on energy costs.

Air Curtains allow the doors to remain open for longer, inviting patrons in off the street, they also allow for much of the conditioned air inside the building not to escape outside. At times, both an air curtain and physical door are often utilized in tandem; when the solid door is opened the air curtain turns on, minimizing air exchange between inside and outside.

Air curtains provide an unseen barrier, without deflecting from the design of the building, providing an unobtrusive barrier against outside elements. Air curtains are especially effective in areas where doors are left open for long periods, or have to open consistently throughout the day, or even over an entrance which needs to be kept open for operational purposes. Not only are they useful at the main entrance, but they have also been installed within businesses such as the entrance to packing areas / food preparation areas or the internal doorway within a large meatworks.

For cold rooms and freezers air curtains are the safest way to protect the energy losses without any physical barrier that can create accidents or collisions on the doorway. For example, when plastic strip curtains are used the view across the doorway is limited and people or vehicles accidents occur, with compensation consequences. Besides it prevents bothersome and potentially dangerous fogging, humidity and ice formation in the door entrance area.

Commercial profitability:

Sales increase due to the “open door effect”. It is known that when doors are open, people affluence increases substantially;
Doors open is an invitation for customers;
Doorway acts as a shop window and allow people to see the inside of the shop;
Free access for disabled people (wheelchair) or people using baby strollers, trolleys, umbrellas, etc.
Help to control uncomfortable sensations of draughts;
Increases available usable space on entrances;
Increases customers and staff comfort.

Hygienic and healthy atmosphere:
Helps maintain adequate enviroment;
Reduces employee absenteeism;
Pest and insect control;
Barrier against airborne dust, pollution, fumes and bad odours.

Energy saving:
Reduces the energy losses from the conditioned space;
Reduce central plant capacity (heating/cooling);
Reduces the building running cost;
Reduces the CO2 emissions.

Increased safety:
Increase visibility and avoid collisions because there isn’t a physical obstruction;
In cold rooms reduces misting, dry out the doorway and prevents ice forming on floors;
Easy evacuation through the exit doorway in case of fire or emergency;
Act as a barrier against fire smoke.

Air curtains work by disrupting and minimising natural convection, and provide a continuous stream of air circulated across a doorway serving a conditioned space. Air Curtains Save More Energy. A new research study shows that air curtains are significantly more energy efficient than vestibules and can save commercial-industrial building projects tens of thousands of dollars in construction costs as vestibule substitutes.

The air curtain keeps internal environment at comfortable warm temperature and avoids cold air penetration from the outside. By installing an air curtain, wastage can be cut by up to 70%.

a). The height of the installation measured from the discharge diffuser to the floor

b). The width of the door

c). The location of the building to determine the level of protection needed against weather conditions (temperature, humidity and wind)

d). If the building has several doors in the same area, different or opposite façade

e). If the building has several storeys connected by escalators/stairs

f). Pressure differences between the inside and outside of the building

g). Door characteristics: If always open, it opens automatically, it opens manually, revolving door, etc.

h).Characteristics of the ventilation and air conditioning installation

i). Voltage and electrical power availability

j). Type of business, style and decoration of the premises

k). Free hanging or recessed, horizontal or vertical installation, heated or unheated, etc.

Some installations with strong wind conditions may compromise the air curtain due to: Severe wind, extreme temperature difference indoor/outdoor, more than one door, different levels, big halls, high pressure difference, etc. In those situations a higher performance model is recommended.

As the entrance is the first impression of the store, there's a study shows that at an open door enter 10% more customers.

The energy saving air screen reduces heating and cooling costs by up to 70% while protecting the internal climate and increasing people comfort.
It keeps the atmosphere clean from pest and insects, dust, airborne, pollution, smells, odours and stops draughts and cold or hot air entrance.
The functioning of an air curtain is based on a high velocity jet of air that covers all openings. Heated air curtains creates comfort by the jet of air on people as they cross the air screen and helps to maintain the temperature on the entrance.

The other benefit of air curtains is that they can help a structure earn Energy and Atmosphere points, Indoor Air Quality points, Innovation in Design points, and Indoor Environmental Quality points, all of which add up to the Leadership in Energy and Environmental Design (LEED) certification [source: Air Conditioning, Heating and Refrigeration News].

Specifications: a) Timer Fuction; b) LED Screen; c) Multi Speed; d) Remote Control/Control Panel; e) Ultra Slim

A tower fan is very easy to maneuver, considering its light weight and portability. A tower fan also enjoys an advantage over normal electric fans as it’s tall, thin design is an excellent space-saving option. It easily fits into the corner of any room, taking up very little space. Plus, it’s the most powerful and is capable of cooling several people in a large room due to better-than-average total coverage.

The device is able to oscillate from left to right and it can push hot air outward. It is different from an air conditioner since it does not cool air, but just creates air flow. This makes the device very energy-efficient, which is a great advantage as it will significantly reduce your utility bills.

Most models also feature a timer function that allows a superior level of control over the device. The timer allows you to set the operation time of the tower fan for several hours before it is meant to go off. This feature is very convenient when you want to have fresh air circulating in the room before you go to sleep.

Overall, it’s high powered, can cover a lot of ground. It’ll keep you, your family and your friends as cool as can be — all at the same time.

A Heat Recovery Ventilator is a controlled ventilation system that reduces high humidity, pollutants and odours in the home by replacing stale air with fresh warm air. 

It works by capturing and recycling the heat contained in polluted exhaust air, using the heat to warm incoming fresh air. This results in humidity being reduced when air is warmed, and so warm air can absorb moisture. This means that incoming cold, outdoor air is “dehumidified” when it is warmed by the recycled heat.

Energy recovery ventilation (ERV) is the energy recovery process of exchanging the energy contained in normally exhausted building or space air and using it to treat (precondition) the incoming outdoor ventilation air in residential and commercial HVAC systems. During the warmer seasons, the system pre-cools and dehumidifies while humidifying and pre-heating in the cooler seasons. The benefit of using energy recovery is the ability to meet the ASHRAE ventilation & energy standards, while improving indoor air quality and reducing total HVAC equipment capacity.

In a word, Energy Recovery Ventilator (ERV) allows fresh air into a building, while retaining pre-conditioned heating or cooling.

Heat Recovery Ventilator (HRV) is the proper choice in colder climates where there is excess humidity during the heating season, since it can eliminate it.

The HRV keeps the home supplied with a steady flow of fresh outdoor air. As stale, warm air is expelled, the heat recovery core warms the incoming fresh, colder air before it is distributed throughout the home.

Energy Recovery Ventilator (ERV) is suitable for colder climates, in homes where there is no humidity excess during the heating season, as well as for warmer climates homes with high outdoor humidity.

The ERV recovers heat (like the HRV); however, it also recuperates the energy trapped in humidity, which greatly improves the overall recovery efficiency.

In conditioned homes, when it is more humid outside than inside, the ERV limits the amount of humidity coming into your home.