Due to the good weather of Emperor's 'abnormal' last year, many consumers have dispelled the idea of purchasing an air purifier, but just a few days ago, with the autumn and winter curtains completely opened, Beijing's air quality gradually deteriorated. On the 14th, Beijing air The quality situation has reached a serious pollution, and it has become the first heavy pollution day in autumn.
What is more worrying is that the Ministry of Ecology and Environment recently said that according to forecasts, the conditions for the spread of atmospheric pollution this winter will be different from the same period of last year, which means that this winter's haze will probably meet us often. Air purifier, it's time to get ready.
10.14-15 Beijing has serious air pollution
Have to understand the "new national standard for air purifiers"
If you choose an air purifier, you have to first understand the 'new national standard for air purifiers'. All the empty net products that are on sale in the market are in compliance with the new national standard. Otherwise, they cannot be called 'air purifiers'. These products are called 'air purification fans' for this reason.
So, what are the new national standards? I believe that you will definitely not read them word by word, so we will focus on it. In simple terms, GB/T 18801-2015, which will be implemented from March 1, 2016. The new national standard for air purifiers clearly defines four core indicators that affect the purification effect of air purifiers: CADR value (clean air volume), CCM (cumulative purification amount), energy efficiency rating and noise standard, which we explain one by one.
CADR (clean air volume): Purifier effect indicator, the larger the CADR value, the stronger the purifier's purification ability, the better the purification effect.
How big is the big one? The upper limit of the new national standard is 800 m3/h. If this limit is exceeded, the specific value will not be marked. Some products on the market can already achieve 1000 m3/h or more. CADR, purification area, air pollution, three It can be converted between, the higher the air pollution level, the larger the purification area, the higher the CADR value that is naturally needed. In general, for the average family, 600 m3/h or more is enough. Of course, one can not be expected. Empty net to get the whole family, buy a few more is king.
CCM (accumulated high purification amount): The higher the CCM, the more pollutants are purified, the longer the filter life is. The highest level of formaldehyde CCM is P4, and the highest level of particulate matter CCM is F4, lower than these two levels. Think carefully.
Energy efficiency equivalent: The higher the energy efficiency level, the more energy saving. It is divided into particulate matter purification energy efficiency and formaldehyde purification energy efficiency. When the particle energy purification efficiency value reaches 2, it is qualified; when the ratio reaches 5, it is high efficiency. For formaldehyde purification energy efficiency When the ratio reaches 0.5, it is the qualified level; when the ratio reaches 1, it is the high-efficiency level. The high-efficiency level is better than the qualified level, the instructions are usually marked, remember to pay attention.
Noise quantity: GB 3096-2008 Acoustic Environmental Quality Standard stipulates residential area: The daytime noise limit is 55 decibels, and the night noise limit is 45 decibels. Air purifiers generally have different noise levels in different gear positions, so the normal gear position and It is better to control the sleep file below 55 decibels and below 45 decibels. You can observe the prototype for intuitive experience when purchasing.
In summary: Air purifiers that meet the new national standard should have the characteristics of 'three highs and one low', namely high CADR value + high CCM value + high purification energy efficiency + low noise.
What should an air purifier comply with the new national standard?
Light said that the standard may not have a concept, so we chose a more popular big-name manufacturer's air purifier - Philips 5000 series air purifier AC5656.
First look at the sign does not meet the 'three high and one low' standard.
The particle size CADR value of the Philips 5000 series air purifier AC5656 is marked as 600 m3/h, and the test report shows 650 m3/h. In a 20 square meter room, a round of purification process is completed in less than 5 minutes, the actual The effective use area can reach 42~72m2, and the average family should be able to use high-contamination smog weather.
Particulate matter CCM>12000mg, belonging to the P4 level, the most advanced, to meet the requirements of use.
The energy efficiency level is high-efficiency, which is more environmentally friendly and energy-saving than the qualified level. It is suitable for electric appliances such as air purifiers that require long-term operation.
In terms of noise, the silence mode is only 38 decibels, below the noise standard of 45 decibels, and the nighttime use does not affect.
In addition, the Philips 5000 Series Air Purifier AC5656 has some unique advantages, effective for smog weather, such as: can filter 99.9% as small as 0.003 microns of particles. We know that the main component of smog is PM2.5, also It is a particle with a diameter of 2.5 microns or less. It is natural to filter the haze.
There is also an air quality sensor comparable to a professional laboratory, which can display harmful gas, PM2.5 and allergens in real time, and truly realize real-time visualization.
Keeping away from the smog is the common aspiration of all people, but the economic development and climate change are hard to be controlled by us. When the smog comes, what you can do is to protect yourself and your family, master the scientific knowledge of flood prevention, and Learn how to pick and use air purifiers. These are the right ways to fight.