How to choose fresh air ventilation system for your house?

In today’s increasingly serious air pollution, people’s demand for purifying indoor air is increasing. With the understanding of air purification methods, some foresighted people have found that it is difficult for purifiers to purify the whole house air and cannot Providing fresh air will cause secondary pollution, so I began to give up air purifiers and buy KCVENTS fresh air purification systems. 

Note that the “KCVENTS fresh air purification system” mentioned here is not a fresh air system in traditional cognition. Traditional fresh air can only achieve ventilation and ventilation, and the filtration level is low, so air purification cannot be achieved; while the fresh air purification system not only provides ventilation, but also It purifies the air in the whole house, but also keeps the indoor temperature constant and saves energy. 

The fresh air purification system is divided into three types: ceiling type, single type and cabinet type

Ceiling type fresh air system: installed on the ceiling, the air output is small, the purification effect is not obvious, and the replacement of the filter element and the maintenance of the machine are also quite troublesome. willing to repair.

Single-room fresh air purification system: the distance between the air outlet and the air inlet is close, the filtration level is low, the heat loss is large, and the purification effect is limited, so it is only suitable for installation in a single room.

VT501, EC energy-saving motor, uniform air volume, low-frequency operation, low noise, combined filter element and H12/H13 grade HEAP, better purification rate, suitable for a single room, improve comfort. There are few installation restrictions, both before and after decoration.

When purchasing a fresh air purification system, we should not blindly choose, we should choose according to our own requirements and choose the fresh air system that suits us. These five key criteria are described below:

1. Air volume

The most important thing is of course the air volume. The principle of fresh air is to inhale fresh outdoor air and inject it into the room to “drive away” the original indoor air, so as to ensure that the indoor air is fresh and aerobic. Large air volume, fast ventilation, indoor pollutants are not easy to accumulate; small air volume, slow ventilation, can not solve the problem at all.

The larger the air volume, the faster the ventilation, and the faster the ventilation, the fresher the indoor air. Therefore, it is recommended to select a fresh air system with a large enough air volume and can ensure the indoor air quality standard according to the size of the indoor space. For example, users with an indoor area of 80 square meters are recommended to purchase a fresh air purification system with an air volume of not less than 300 cubic meters per hour.

KCQR series Heat recovery ventilatioin,

Heat exchanger rate with up to 90%

Internal acoustic cotton to reduce noise level.

Low-consumption motor.

Centrifugal forward curved impeller.

Galvanised sheet steel body.

4 nozzles Ø100 mm. / Ø150 mm. / Ø200 mm.

2. Filtering effect (filter level)

If you want clean air, of course, it depends on the filtering effect of the fresh air purification system. The filtration function of the fresh air purification system depends on the filter inside the machine. The air inhaled by the machine from the outside is filtered through the filter inside the machine to ensure that all the air sent into the room is clean. Therefore, judging the filtering effect of a fresh air purification system actually depends on the filter level of the fresh air purification system.

Friends who are familiar with fresh air may often hear the word “HEPA”, HEPA (High efficiency particulate air Filter), which means high-efficiency air filter in Chinese, a filter that meets the HEPA standard, and has a filtration efficiency of 99.9% for 0.3 microns. . The following is the standard for HEPA filter grades at home and abroad. 

3. Noise

The purpose of installing a fresh air purification system is to breathe real clean and fresh air, and to sleep peacefully every day. So noise has become an important factor that we must consider. Generally speaking, the noise of the fresh air purification system is proportional to the air volume. The larger the air volume, the louder the noise. Therefore, when purchasing fresh air, we need to find a balance between air volume and noise, and we cannot blindly pursue large air volume. 

Between 45 decibels can be considered a “fairly quiet” range, above 45 decibels we already feel a little noisy. In cities with poor air quality in China, the fresh air purification system may be required to operate at a large air volume for a long time, so when purchasing a fresh air purification system, we need to see how much the maximum noise will reach. If the maximum noise exceeds 45 decibels, you need to consider carefully Considered.

4. Maintenance cost

The after-sales and maintenance of fresh air products is also an aspect of our concern. The biggest maintenance cost of the fresh air purification system is the replacement of the filter screen. Then two questions are involved: 1. How much is the replacement cost? 2. Is it easy to replace?

When it comes to replacement cost, it is actually the frequency of replacement. When to replace the filter? Taking Beijing as an example, the coarse filter is replaced every 3 months or so, and the high-efficiency filter is replaced almost every six months. If the filter screen has expired but has not been replaced, the fresh air purification system will not only be unable to provide the purification function, but may become a new source of air pollution due to the accumulation of pollutants. There are generally two ways to solve this problem. One is to buy an air detection instrument and regularly measure the air data of the air outlet. If the data is not good, it means that the filter should be replaced. After changing the filter data, the machine should be replaced. It is to purchase a fresh air purification system that can actively give information on replacing the filter screen, which requires the fresh air to have certain intelligent attributes.

The second question, is it easy to replace? The ceiling-type fresh air purification system requires a ladder to replace the filter element. If the fan fails, the entire ceiling needs to be removed, which is very troublesome. However, the KCVENTS VT501 wall-mounted fresh air purification system can replace the filter element after removing the machine, which is very convenient.