The better the quality of the air environment, the healthier the human body will breathe. The environment is constantly changing, the environment around the living area is also prone to pollution, such as PM2.5 exceeding the standard, thick smoke, stinking sky, formaldehyde exceeding the standard, etc., in order to make the home always have clean fresh air, many families have introduced a fresh air system, through the fresh air to filter the harmful substances in the air, while discharging the harmful gases in the room. Fresh air systems make the home environment healthier, and how much do we know about fresh air systems?
1. Is the filter level of the fresh fan the higher the better?
The fresh air system mainly filters the air through the filter to achieve air purification treatment, and the filter is divided into many grades. The national standard filter grade is mainly divided into coarse filter, medium efficiency filter, high efficiency filter (high efficiency filter, sub-efficient filter and high efficiency filter), the higher the grade of the filter, the smaller the pore size of the filter, the better the effect of filtering, but the corresponding fresh air filter in the filtering resistance will be greater, the current household fresh air filter filter level belongs to the H level, more than 99% of the PM2.5 in the air will be intercepted by the fresh fan. In addition, the effect of fresh air system filtration is not only related to the accuracy of the filter, but also considers the air volume, static pressure value, installation pipe length, supply and exhaust air design scheme and indoor air outlet size of the fresh air blower.
2. How often is the filter of the fresh fan replaced?
Fresh air system of different grades of filters, the use of different life, the conventional environment of the primary filter and the medium effect of the filter is recommended to replace once 3-6 months, high efficiency filter is recommended to replace once 6-9 months, for the air pollution is more serious or the humidity is relatively large areas, the need to shorten the filter replacement cycle accordingly. If the filter of the fresh fan is not replaced for a long time, it is easy to lead to a decrease in the purification efficiency of the fresh air, and when there is too much accumulation of pollutants, it is also easy to pollute the indoor air for the second time, and it may also damage the equipment parts. In addition, almost all household fresh air fans are with full heat exchange function, can control the temperature of fresh air entry and discharge equipment, greater maintenance of the room temperature constancy, and the full heat exchange core also has life limits, the general paper class of full heat exchange core can be used for about 3 years, need to be replaced regularly, aluminum or resin full heat exchange core can be used for more than 10 years, need to be cleaned regularly.
3. How should the filter of the fresh fan be replaced?
Fresh fan filter replacement and installation design related, installation to reserve in advance to replace the filter and maintenance of the maintenance port, some fresh air filter replacement position on the side, some fresh fan filter replacement position at the bottom, so the need to combine the installation position of reasonable design to replace the filter access port. The filter of the fresh fan is usually installed in a plug-in type, open the cover of the fresh fan to replace the filter, take out the filter that has reached the use time, and then install a new filter, and finally restore the cover of the fresh air.
4. Does the pipe of the fresh air system need maintenance?
Currently, the plumbing of fresh air systems does not require cleaning and maintenance. Because the air is filtered through the filter in the fresh air host and then sent indoors, the degree of cleanliness of the air is already very high, and the return air is directly discharged to the outdoors, the intake air and the return air are flowing, the fresh air is often kept in a normal state, the pipe is not easy to accumulate ash, basically will not affect the normal use and cleanliness of the fresh air system. Of course, there is also a way to clean and maintain the pipes of the fresh air system, but it is more time-consuming.
5. How to use the fresh air system to ensure the best purification effect?
The role of the fresh air fan is to replace the indoor and outdoor air, send the outdoor air into the room after purification, and then discharge the indoor air to the outdoor, so the fresh air system to ensure the purification effect, need to meet the following three conditions:
(1) The airtightness of the indoor space, when the fresh air system is working, please close the doors and windows to ensure that the room is in a sealed state, and realize the complete displacement of the room air through the positive and negative pressure of the fresh air; (2) The use area can not exceed the power range of the fresh fan, if the small power fresh fan is used in the space that exceeds its power, the purification effect will be greatly reduced, and the pipe length of the fresh fan is also required, which cannot exceed the design length, and the small angle curve design should be reduced when installed; (3) The filter of the fresh fan should be cleaned and replaced regularly, the cleanliness of the filter affects the fresh air volume and pollutant interception ability, the coarse, medium, high efficiency and full heat exchange filter element should be replaced regularly, the silver ion filter should be cleaned regularly, and the activated carbon filter should also be replaced regularly.
summary
The fresh air system can purify the indoor air, discharge the indoor harmful gases to the outdoors, and make the room obtain fresh and clean air by not opening the window, so as to keep the indoor air clean and provide protection for the healthy breathing of indoor personnel, especially in areas with serious pollution, the role and demand of the fresh air system will be greater. We must also correctly understand the benefits of the fresh air system, rationally use the fresh air system, carry out correct maintenance of the fresh air system, and ensure that the fresh air system has been efficiently purifying the indoor air environment.