Air purifier, also known as "air cleaner", air freshener, or purifier, refers to the ability to adsorb, decompose or transform a variety of air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde, and other decorative pollution, bacteria, allergens, etc.), and effectively improve the cleanliness of the air, to remove indoor air pollution. Domestic and commercial air purifiers are the main products. Currently, there are five main types of air purifiers on the market, different purifiers purchase and use different methods, according to the need to screen.
Introduction to the working principle of air purifiers
Air purifiers can be divided into two main principles, passive adsorption and filtration air purification principles. The other is the active air purification principle. Below we will look at these two principles in detail how it is.
The first category is: the passive purification class (filter purification class)
The main principle is: that the fan will air into the machine, through the built-in filter air, mainly to filter dust, odors, and toxic gases and kill some of the roles of bacteria.
The filter is divided into a dust collection filter, formaldehyde filter, deodorant filter, and HEPA filter.
One of the higher costs is the HEPA filter, which can play a role in the decomposition of toxic gases and bactericidal effects, especially to inhibit secondary pollution. These products are characterized by fan function as well as the quality of the filter to determine the purification effect, the placement of the machine, as well as the indoor layout, affects whether the purification is complete, the indoor purification effect is not balanced, but also difficult to complete, the filter replacement cost is higher.
The second category is: the active purification category (no filter type)
According to the active bactericidal principle, these products can be divided into silver ion technology, anion technology, low-temperature plasma technology, photocatalyst technology, and plasma cluster ion technology.
Four hard indicators of air purifiers
Fan air volume indicators, purification efficiency indicators, energy efficiency indicators, and safety indicators are air purifiers that must look at the purchase of four hard indicators, but also an important measure of whether an air purifier is qualified.
Fan air volume indicatorsEfficient filtration of air purifiers must ensure that the indoor air to a certain number of air changes, the standard requirement of the first hour of the purification machine is to filter the air in the room more than 5 times, an average of every 12 minutes to be filtered.
Purification efficiency indicatorsThe purification efficiency (CADR) value of the national standard to evaluate the performance of air purifiers, the higher the value, the cleaner the air purifier output ratio is, and the higher the purification efficiency of the purifier.
Energy efficiency ratio indicatorsThe energy efficiency ratio of a good air purifier should be greater than 3.5, and the higher the value, the more energy efficient the air purifier.
Ozone Safety IndicatorAn important safety index of air purifiers is the ozone safety index, ozone has been proven to be relevant to health hazards in the indoor air environment, and its concentration is strictly limited, and strict test methods have been developed.
Air purifier purchase three major misconceptions
With the deterioration of air quality air purifiers in thousands of households, we have an air purifier that can rest easy. However, for the air purifier this new thing, we only half know. Because of the lack of understanding, there will inevitably be such and such a misunderstanding in the purchase.
The more expensive the air purifier, the better the effect.
The purchase of recognition "purification rate of 99.9%" is correct.
In addition to performance indicators, air purifiers buy more to see the "applicable area".
Air purifier purchase should grasp the four principles
Should consider the use of the environment and the effect to be achieved
Consider the purification capacity of the air purifier
Considering the service life of the purifier, maintenance is not simple
Should consider the layout of the room with the purifier match
Steps for purchasing an air purifier
The purchase of an air purifier is not more difficult than imagined, as long as you pay attention to the following matters, you will not regret picking the right air purifier.
A look at the purification method: The composite purification method effect is more comprehensive
The purification method is divided into passive purification type, active purification type, and composite purification type three. Passive purification can only attract pollutants in the air into the machine, through the filter air. Active purification can actively remove bacteria and odor from every corner of the room. Composite purification is a combination of active and passive forms.
Second look at the purification technology: strictly prevent the harmful release of ozone
An air purifier is divided into a variety of different technologies and media, common negative ion technology, ozone technology, photocatalyst technology, plasma cluster technology, and so on. The above various technologies, for consumers, may be difficult to understand. Experts suggest that consumers should choose the technology that has been tested and verified by authoritative departments.
Three look at the filter: try to choose more than four layers of filters
The filter is the core component of the air purifier, and its quantity and material have a great impact on the purification effect. There are many kinds of indoor environmental problems, including odor, PM2.5, and formaldehyde....... A good air purifier will solve different problems through multiple filtration.
Four look at the purification efficiency: choose large air volume, high wind speed products
The purification effect is also a decisive factor, in the purifier of indoor air replacement efficiency. Air conversion efficiency is determined by the airflow design, if you want to achieve a complete and balanced purification effect, it is best to choose a large air volume, high wind speed, and tilt blowing out of the airflow guidance design to reduce the loss of air volume, so that the purification technology can be released to the corners of the room, to play to the maximum effect.
Five looks at the humidification method: natural vapor more healthy
Many humidifiers on the market use the "atomized humidification" technology, humidification often causes excessive problems, even if the humidity has exceeded 60% or 70% will be blindly humidified. If the humidity is higher than 60%, it will promote the growth of mold, bacteria, and mites. Natural vaporization releases pure water molecules closer to nature and does not produce water mist, humidification is more uniform, no secondary pollution.
Six look at the after-sales service: after-sales service should be perfect
Filter cleaning and replacement of the purification effect on the role of the obvious, so choose the perfect after-sales service manufacturers. Major manufacturers of after-sales service are not the same, such as purification of the filter gallbladder failure needs to be replaced at the manufacturer, so you should choose after-sales service perfect enterprise products.
Cleaning and Maintenance of Air Purifier
A good air purifier can effectively remove dust, pet dander, and other particles in the air that we can't see with the naked eye. The filtered air purification of the air purifier determines that the filter of the air purifier needs to be cleaned frequently, and daily maintenance is also very important.
Cleaning of the filter
1、Pre-filter
Filter out airborne pollen, pet hair, and other allergens.
Cleaning: It is recommended to clean it once a month. This layer of filter can not be washed, and you can pat it to remove dust after using it for some time.
2、Allergen filter
Can effectively remove large dust, mold, and animal hair, and play a role in protecting other filters.
Cleaning: It is recommended to clean it once a month, and you can use a Hoover to remove the dust on its surface when cleaning it.
3、HEPA filter
HEPA is internationally recognized as the best high-efficiency filter material.
Cleaning: HEPA filters in general can not be washed, it is recommended to replace them once every 6 months.
4、Activated carbon filters
It is generally used to get rid of odors in the air.
Cleaning: the layer of filters can not be artificially cleaned, it is recommended that the replacement cycle is generally six months.
Air purifier daily maintenance methods
1、Pre-filter
After using it for a long time, it will gather some dust, which will affect the air intake and the effect of air purification. Therefore, you need to use a vacuum cleaner to suck the dust away, or clean it with a rag, or even wash it.
2、Filter
Part of the filter is the need to regularly get the sun to the sun, purification efficiency can be better maintained, such as an activated carbon filter.
3、Deodorising filters
A few brands of air purifier deodorant filters achieve the technical level of washable and can be washed, that is, to maintain the purification efficiency, to extend the filter cycle.
4、Ion generator
Ion generators are generally built-in and do not need to be cleaned, and better ion generator work efficiency is higher.