Air purifiers can significantly improve indoor air quality, especially after home renovations that often release harmful pollutants. These contaminants, such as formaldehyde, dust, and smoke, can have serious health impacts. To combat this, many people turn to air purifiers, which not only clean the air but also eliminate odors, dust mites, and even generate a small amount of ozone to freshen the environment. They work by adsorbing, decomposing, or converting various airborne pollutants, including PM2.5, pollen, bacteria, and allergens.
With over 300 companies entering the air purifier market since 2014, the industry has seen rapid growth. Sales have surged by nearly 70% year-on-year, showing increased consumer awareness. However, while air purifiers do help reduce pollution, they should not be relied on entirely. The most effective way to maintain good air quality is to minimize the sources of pollution in the first place.
Low-cost counterfeit air purifiers may seem like a budget-friendly option, but they often lack real effectiveness and can even cause secondary pollution. These products are usually made with poor materials and substandard components, leading to weak purification performance. Their appearance might resemble well-known brands, but their safety and efficiency are questionable.
When choosing an air purifier, the CADR (Clean Air Delivery Rate) value is one of the most important factors. It measures how effectively the device removes pollutants from the air. Other key considerations include the coverage area, formaldehyde and PM2.5 removal efficiency, bacterial elimination rate, energy efficiency rating, power consumption, noise level, and filter lifespan.
After the introduction of new national standards, air purifiers are now required to meet stricter performance criteria. During use, air purifiers can dry out indoor air, so it’s advisable to place water containers nearby. If using a humidifier, keep it at a distance and limit its operation time to protect the purifier’s filters.
Proper maintenance is essential for long-term performance. Ensure the unit is placed on a flat surface, check the filters regularly, and replace them when necessary. Avoid placing the purifier in areas with high dust levels or where it could be tilted, as this may damage internal components.
Experts recommend prioritizing air purifiers with third-party testing certifications, especially those with medical-grade validation. While foreign brands may offer certain advantages, domestically designed models are often more suitable for local conditions and cost-effective. When purchasing, focus on effectiveness, reliable after-sales service, and a good balance between price and performance.
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