Air pollution has significantly increased the demand for air purifiers in recent years. According to reports from Suning and Gome stores, the number of inquiries and sales of air purifiers has risen sharply. Most consumers tend to favor well-known brands due to their reliable after-sales service.
With fierce competition in the market, major appliance manufacturers have been actively developing new products this year. Companies like Midea, Philips, Haier, Panasonic, Hisense, and Electrolux have launched innovative air purifier models. With so many options available, consumers should consider more than just price when making a purchase. Here are some key factors to keep in mind.
First, assess whether there is formaldehyde pollution in your home. If so, it's essential to choose an air purifier with strong formaldehyde removal capabilities. Today’s air purifiers use various technologies: activated carbon adsorption, electrostatic dust collection, and HEPA filtration for particles; active oxygen and low-temperature plasma technology for bacteria and viruses; and molecular complexation or photocatalytic decomposition for formaldehyde and benzene. Some models also include negative ion functions to tackle secondhand smoke. Choose based on your specific needs.
Second, think about additional features you might need, such as humidity control, negative ion generation, or oxygen enhancement. Also, consider maintenance costs, including filter replacements and warranty services.
**What to Focus on When Buying**
Air Exchange Rate: A good air purifier should have a high air exchange rate, measured in cubic meters per hour (m³/h). The higher the value, the better.
Purification Efficiency: Look for products with high efficiency in removing solid particles, volatile organic compounds (VOCs), and formaldehyde. These are typically expressed as percentages—higher is better.
Filters: Most air purifiers come with 3–4 layers of filters, while premium models may have up to 6 layers. Each layer targets different pollutants. For example, the pre-filter captures large dust and hair, the deodorizing filter (usually activated carbon) removes odors, the formaldehyde filter targets harmful chemicals, and the HEPA filter traps tiny particles like dust, pollen, germs, and smoke.
**Maintenance Tips for Air Purifiers**
Regular maintenance is crucial for optimal performance. Always refer to the user manual for cleaning instructions. The pre-filter, which removes large dust, should be cleaned monthly using a vacuum and then washed. The allergen filter, designed to capture pet dander and pollen, should be shaken and dusted once a month, not washed. Activated carbon filters, used for odor removal, should be replaced every six months and cannot be washed.
Industry experts recommend that when choosing an air purifier, don’t focus solely on price. Quality and after-sales support are equally important. Additionally, it’s better to select only the necessary features rather than opting for models with too many unnecessary functions.
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