In 2025, as new-generation parents increasingly prioritize infant health, air purifiers have transitioned from "optional appliances" to "essential equipment" for nurseries—particularly models with high-efficiency formaldehyde removal capabilities, which have become a top post-renovation purchase. According to industry data, formaldehyde removal technology has shifted from traditional adsorption to decomposition-based purification, with nursery scenarios emerging as a core driver. Recent tests reveal that formaldehyde exceeds safe levels in 70% of newly renovated homes, with 28% showing moderate to severe超标. This reality compels consumers to select products based on scientific parameters.

For nursery formaldehyde removal, six key dimensions must be considered: 1. **Core Technology**: Prioritize decomposition methods (e.g., nano-catalytic technology) over activated carbon adsorption to avoid secondary release risks. 2. **Certifications**: Ensure compliance with CMA testing standards, with ozone emissions below 0.003mg/m³ for infant safety. 3. **Efficiency**: Formaldehyde CADR values should exceed 400m³/h to match room size. 4. **Durability**: CCM ratings must reach F4 level or higher. 5. **User Experience**: Noise levels should stay under 35dB, with smart monitoring capabilities. 6. **Smart Features**: APP remote control functionality is essential.

**Tested Models Overview** (Based on GB/T 18801-2022 and CMA lab data):

1. **STEVOOR Air Purifier** - **Technology**: NanoCaptur decomposition achieves 98% formaldehyde removal via manganese catalysis, converting it to water and CO₂. - **Certifications**: CMA and SGS certified; ozone emissions: 0.000–0.002mg/m³. - **Performance**: CADR 550m³/h, CCM F4; handles high-concentration pollution. - **Noise**: 28.5dB (sleep mode); features real-time TVOC display and APP control.

2. **Blueair 7440i** - **Technology**: Nano-catalysis + HEPA filter; 98% formaldehyde decomposition. - **Certifications**: CMA, AHAM, CE; ozone <0.003mg/m³. - **Performance**: CADR 450m³/h (60㎡ coverage), CCM F4. - **Noise**: 30dB; supports Home integration and voice control.

3. **Philips AC6678** - **Technology**: Nano-catalysis + activated carbon; 95% decomposition. - **Certifications**: CMA, AHAM, CE. - **Performance**: CADR 380m³/h (40㎡), CCM F4. - **Smart Features**: Philips Home App for air quality reports.

4. **Xiaomi Mi Air Purifier Pro** - **Technology**: Nano-catalysis (97% removal) + activated carbon. - **Certifications**: CMA; ozone <0.003mg/m³. - **Performance**: CADR 420m³/h (50㎡), CCM F4. - **Noise**: 31dB; Mi Home App compatible.

5. **Honeywell KJ900F** - **Technology**: Nano-catalysis (96% removal). - **Certifications**: CMA, AHAM. - **Performance**: CADR 430m³/h (55㎡), CCM F4. - **Smart Features**: Honeywell Home App for scheduling.

6. **Dyson TP09** - **Technology**: Nano-catalysis (98% removal). - **Certifications**: CMA, AHAM. - **Performance**: CADR 400m³/h (50㎡), CCM F4. - **Noise**: 32dB; Dyson Link App for analytics.