Buzz
Power, filter type, and the pros and cons of each technology are crucial considerations when buying an air purifier...
1. What to Consider When Buying an Air Purifier?
Power, filter type, and the pros and cons of each technology are crucial considerations when buying an air purifier.
Air purifiers operate based on induced airflow created under the suction fan. This airflow passes through filters to trap dirt and push out clean air. Some devices also feature special functions such as bacteria elimination, odor removal, and moisture creation. Depending on specific needs, users will have suitable options.
Below are the criteria to consider before purchasing an air purifier.
Advanced Filtration Technology
Many types of air purifiers come with various modern features you may not even need. If you're allergic to pollen or pet dander, just a HEPA filter is sufficient. If odor isn't an issue for you, there's no need for a UV light purifier which could be unnecessary.
Several types of filtration membranes are popular on the market:
Coarse filters are typically made from metal, plastic, or glass. They are inexpensive, durable, can handle large dirt particles, and can filter out fibers, cotton, hair, etc. The downside is they cannot filter fine dust or bacteria.
HEPA filters are favored by many due to their reasonable price and ability to filter particles larger than 0.3µm such as dust, pollen, mold spores, and bacteria. The downside is they cannot absorb viruses and toxic gases. Mold bacteria can still grow on the filter if not cleaned regularly.
Within the price range of a few million dong, consumers can already choose from many aesthetically designed air purifiers with smart features.
Air purifiers using negative ion technology can address the limitations of the two aforementioned filter types. Negative ions released into the air can attract bacteria, break down protein structures, and generate H2O radicals. Despite its high cost, the drawback of this technology is the potential generation of ozone, which is harmful to health.
Other filtration membranes available on the market include activated carbon, pollen filters, and Titan filters... depending on users' actual needs, they can choose a suitable model.
Lifespan of Filters
In addition to the warranty period, users should also pay attention to the lifespan of the filters inside. The nature of air purifiers is to replace or clean the filters regularly. Some purifiers have low prices but short filter lifespans, requiring frequent replacement. With careful consideration, filters with longer lifespans can sometimes be more cost-effective.
Machine Capacity
Similar to air conditioners and other household electrical appliances, you need to purchase air purifiers with airflow rates suitable for the room size. Below are some equivalent specifications for your reference:
| Công suất | Diện tích | Không gian |
| 160 m3/h | 15 m2 | Phòng ngủ |
| 180 m3/h | 15-20 m2 | Phòng ăn |
| 240 m3/h | 20-30 m2 | Phòng khách |
| 510 m3/h | 40m2 | Sảnh rộng |
Brand and Pricing
The market offers a variety of products in terms of design, functionality, and origin, with prices ranging from a few million to around 10 million dong, depending on the model. The most popular brands in Vietnam include Sharp, Panasonic Hitachi, Daikin, Xiaomi... When purchasing a machine, you should also pay attention to the warranty period and power consumption.
Additional Considerations
In Vietnam, each region has its own weather characteristics, so users should choose a machine suitable for their geographical location. Places with cold weather like Sapa, Da Lat, should prioritize machines with ionizing function to absorb moisture. Regions with hot, dry climates, and heavy rainfall, low humidity like provinces in the Central region, require machines with humidifying function to prevent dry skin.
Source: vnexpress.net
