**Product Specifications:**
**Brand:** MICRONAIR
**Product Line:** Air Conditioning Filters
**Models:** PF, CF, BL
**Types:** Single-effect, Double-effect, Multi-effect (Blue Lung)
**Structure:** 2-layer, 3-layer, 4-layer
**Filter Technology:**
High-quality coconut shell activated carbon
Bio-layer for antiviral protection
Large air volume
Cost-effective
Similar to N95 masks
Adsorbs dust, fine particles, PM2.5, PM1
Adsorbs odors, harmful gases, viruses, allergens
Replacement Cycle: Recommended every 10,000 kilometers or annually
Shelf Life: Unopened, can be stored in a dry place for up to 5 years
**Features:**
Four-layer filtration structure for comprehensive protection against dust, pollen, PM1, suspended particles, unpleasant odors, harmful gases, bacteria, viruses, pathogens, and allergens
Made from natural materials that are safe for human health
**Additional Information:**
Developed by MICRONAIR in 1985
Used in Mercedes-Benz SL sports cars as standard equipment
Established in 1989
Over 30 years of technical expertise
Antifraud measures available for product verification
For more information, visit the official website at [www.micronair.com.cn](http://www.micronair.com.cn) or contact customer service at 400-614-7199.
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