In modern life, air quality becomes an increasingly important issue as air pollution increases. Air purifiers have become an effective solution for improving air quality in living spaces. One of the important indicators to evaluate the performance of an air purifier is the CADR Index. In this article, we will explore the meaning of the CADR Index and its importance for air purifiers.
1. What is CADR index?
The CADR (Clean Air Delivery Rate) index stands for clean air delivery rate. It represents the amount of clean air the purifier is capable of providing in a specific period of time.
CADR measurements are typically for pollen, smoke, and dust. These three pollutants are not only small in size but are also the most undesirable particles in the air.
Smoke particles, with an ultra-fine size of 0.1 to 0.3 microns, can exist in the air and penetrate deeply into the human respiratory system, causing many health problems.
Dust particles, in the size range of 0.5 to 3 microns, are a common component of the air and typically include light dust particles such as house dust, road dust and particles from the surrounding environment.
Pollen grains, with sizes ranging from 5 to 11 microns, are large particles that can be seen with the naked eye. They often consist of pollen grains from plants, trees, and other plants. Although larger in size than smoke and dust particles, pollen particles can still cause allergic problems and affect human health.
The CADR coefficient was invented by AHAM (Association of Home Appliance Manufacturers). It can be said that the CADR index is an important standard that helps consumers evaluate the cleaning ability of a purifier.
2. CADR Rating
CADR ratings are calculated in CFM, which stands for cubic feet per minute, or m³/hour.
When the CADR index is higher, this shows that the air purifier is capable of removing dust particles, pollen and toxic gases from the air effectively and quickly.
For example, an air purifier with a CADR rating of 300 cfm will clean a 300 square ft room much faster than an air purifier with a CADR rating of only 200 cfm.
When shopping for an air purifier, if you find a product with a good CADR rating, this means it is capable of providing clean air effectively.
See more: AQI air quality index
3. Importance of CADR for air purifiers
The CADR index plays an extremely important role in evaluating and ensuring optimal performance of air purifiers. Here are the importance of CADR for air purifiers:
Air cleaning performance: CADR index is the main measure of an air purifier’s ability to remove dust particles, pollen and toxic gases from the air. A high CADR index shows that the purifier has the ability to effectively clean the air, ensuring the air in the room is always maintained clean and safe for health.
Quick response: The CADR index also represents the air purifier’s ability to remove pollutants from the air quickly. This is important in quickly removing dust particles, pollen or toxic gases that can cause allergies or affect the user’s health.
Long-term performance: CADR not only measures immediate performance, but also shows the air purifier’s ability to maintain air quality over the long term. A high CADR means the purifier can continue to clean the air effectively after long-term use.
See more: Puritrak Airsen AS800 air purifier
Product selection: CADR index helps consumers choose an air purifier that suits their needs and usage environment. Users can compare different products based on the CADR index to choose the purifier with the best cleaning ability for their specific space.
Health protection: With the ability to remove dust particles, pollen and toxic gases, air purifiers with high CADR help protect users’ health by reducing the risk of allergies, infections and harmful effects. from polluted air.
The CADR index plays an indispensable role in evaluating and optimizing air purifier performance. However, besides comparing the CADR index, people also need to pay attention to filters, brands, and other criteria to buy a machine that is suitable for their family.
If you need further assistance with information related to the air filtration system, please contact the information below to have Puritrak’s experienced technical department advise you on the right product for you. Thank you for reading the article!