Hong Kong’s air quality has always been focused on by the public, and it is particularly bad in some days each year. According to the statistics of the Environment Bureau last year (2016), fine suspended particulates’ concentration (PM2.5) was most standard -exceeding in air in Hong Kong. According to the World Health Organization standards, the 24-hour concentration upper limit should be 25 micrograms per cubic meter, while the standard –exceeding situations are up to 227 times in Causeway Bay, and standard –exceeding situations are more than 100 times in other areas. In addition to fine suspended particles, there is a variety of bacteria, mold, formaldehyde and other harmful substances in the home air, which cannot be completely removed only by cleaning work, leading to family members’ allergy or discomfort. So, a good air purifier is required to put an end to these substances. We will explain matters needing attention in the purchase of air purifiers.
Apart from air purifier, you should use a vaccum cleaner to clean your home frequently, you may read our "Buy the best vacuum cleaner in Hong Kong" to buy a good vacuum cleaner.
Filter
Air purifier is equipped with a filter to block dust, bacteria, pollen and other harmful substances on the human. The filter can be divided into several categories with different roles, such as the activated carbon filter can filter compounds (including formaldehyde, methanol, etc.) and remove the home odor, which is important for just renovated houses or family members who smoke. And HEPA filter can be used to block PM2.5 people suffered from in 2016, and it can effectively isolate 99.7% of the air PM2.5 suspended particles, allergens and bacteria.
In the market, the air purifier will be equipped with 1 to 3 filters, and some models will use the HEPA filter and activated carbon filter, and some use HEPA activated carbon comprehensive filter / total - effect filter / deodorant filter and so on. We should choose a suitable filter to meet the needs of the family. In addition, we should also pay attention to the price and service life of the filter, because expenses will be increased if we need to regularly change the filter. And the price difference is very large, such as HEPA filter is from $ 360 for 8 years to $ 450 for a year. However, some filter need frequent replacement, but the free sprinkler is enough to use for 5 years or more. In addition to replacing the filter, you also need to regularly clean the air purifier and its filter in order to avoid bacteria breeding in the filter. Vendors have recommended that users clean up the filter at least once every two weeks to one month.
Clean Air Delivery Rate(CADR)
Clean Air Delivery Rate (CADR) is the most able to directly reflect the air purifier’ purification capacity, and its unit is cubic feet / minute. This number indicates the volume of a particular pollutant that the air purifier can purify per minute. Generally speaking, the higher the number is, the faster the purification rate is, and the better the cleaning capacity is. But, we need to pay attention to corresponding air pollutants of CADR, because the CADR number will be different in formaldehyde and dust for the same machine, and we should refer to the relevant CADR in accordance with the needs.
Application area
The vast majority of manufacturers of air purifiers will mark with the scope of the product can be used (application area) to facilitate the customer choose a proper air purifier based on the size of the home space. But because different manufacturers have their own calculation methods and units, it is more difficult to directly compare different air purifier. It is noted that the pollution level will change the actual application area of air purifiers.
Safety protection
Safety of household electrical appliances is very important for modern Hong Kong people, especially for those families with children. When you buy, you can check whether the air purifier has proper safety precautions such as child safety lock, electric shock protection and so on. It is also important to note that whether the outlet is located in an easily accessible position to reduce the accidents. And it will be better if the machine is equipped with remote control and casters, because the air purifier (from 6 kg to 10 kg) can be moved easily.
Humidification function
40-50% relative humidity will make the human more comfortable and healthy. A stable indoor humidity can also help relieve tracheal and skin allergies. Some air purifiers have a humidification function to prevent dry skin and throat in a dry season. So, you can purchase dehumidification + air cleaning air purifiers if needed. You may read "Buy dehumidifier in Hong Kong".
Noise level
Generally, the air purifier is used for a long time in families, so you need to pay special attention to its noise level. In general, the air purifier with strong air draft is bound to have the greater noise.
Brands of air purifiers
In addition to the above matters needing attention when buying the air purifiers, some popular brands will be recommended..
In the 2016 Consumer Council Air Cleaner Test, Panasonic FVXK70H got the highest score (got 4.5 points (full points of 5)). And its filter is recommended to be replaced every 10 years, which greatly reduces the cost of changing the filter. FVXK70H is equipped with infrared human body sensor to detect indoor human activities, predict indoor pollution, rapidly suck flying dust due to human activities and avoid dust diffusion. However, FVXK70H has an applicable area of 560 square feet, so the same series of FVXH50H (430 square feet) or FVXL40H (323 square feet) can be chosen in a smaller house. BBE quality warehouse is the authorized dealer, and you can enjoy one - year maintenance in the original factory if you buy it in BBE quality warehouse.
The Daikin MC70LBFVM has a lower price and also can effectively filter all kinds of dust and pollen. The machine is equipped with a six-layer filtration system, including the primary filter, plasma ionization network, electrostatic dust filter, titanium apatite photocatalytic filter, electronic deodorization catalyst and electric shock absorber. In addition, manufacturers recommend replacing its titanium apatite photocatalytic filter every two years, and five titanium apatite photocatalytic filters are freely attached when purchasing of new machines, so you do not have to buy them for ten years, indicating it has the best cost performance. The applicable area of the MC70LBFVM is 46 square meters (about 495 square feet). BBE quality warehouse is the authorized dealer, and you can enjoy one - year maintenance in the original factory if you buy it in BBE quality warehouse.
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