Home>INFORMATION SHARING>Busting the myth! The air purifier has a high CADR value doesn’t mean it can completely purify the allergens in the air?
Busting the myth! The air purifier has a high CADR value doesn’t mean it can completely purify the allergens in the air?
Most air purifier manufacturers highlight their CADR value (Clean Air Delivery Rate) to help consumers choose a suitable device. But does a higher CADR really mean complete purification of allergens in the air? The answer is more complex than it seems.
What Is CADR?
The CADR measures the volume of clean air an air purifier can deliver per hour. In theory, a higher CADR means the unit can remove pollutants more efficiently. However, CADR tests are usually conducted under controlled conditions and may not fully reflect performance against microscopic particles such as mold spores, bacteria, and volatile organic compounds (VOCs).
Beyond CADR: Third-Party Testing
Independent laboratories such as SGS and other agencies evaluate purifiers using more comprehensive methods. These tests cover:
- PM2.5 filtration (automobile exhaust, factory emissions, second-hand smoke, cooking oil fumes)
- Environmental allergens and germs (pollen, dust mites, bacteria, household dust)
- Organic gases (VOCs) such as formaldehyde and sulfur dioxide, released from building materials, furniture, and cleaning products
- Particle filtration efficiency across multiple pollutant categories
Manufacturers that undergo such testing usually provide transparent data, and consumers can request test reports to confirm performance claims.
The Hidden Threat: Mold Spores
Air may contain over 200,000 mold spores per cubic meter, according to studies of indoor environments. Unlike ordinary dust, mold spores are living organisms that can grow and spread rapidly in humid conditions.
Even if an air purifier has a high CADR, it may not be equally effective at removing all spores. This effectiveness depends on filter design, purifier technology, and whether the device is integrated with an HVAC system for whole-space purification.
YCM’s Professional Approach
At YCM, we provide services that go beyond standard CADR measures:
- Professional consulting to identify hidden indoor air quality risks
- Precise laboratory experiments to test whether your air purifier effectively reduces mold spores
- Integrated purification solutions that can be combined with HVAC systems for comprehensive air safety
Through these services, we help you determine whether your purifier is sufficient—or if upgrades and additional mold control measures are needed to reduce long-term risks.
Final Takeaway
A high CADR value is an important benchmark, but it does not guarantee complete allergen removal. Ensuring safe and clean air requires:
- Verified third-party test data
- Proof of effectiveness against mold spores and VOCs
- Expert evaluation tailored to your space
At YCM, our scientific testing and consulting help you make decisions you can trust—because true clean air means more than just a number.
