Tips about air purifiers

CADR: Clean Air Delivery Rate

CADR stands for Clean Air Delivery Rate. It is a metric used to measure the efficiency of air purifiers in removing specific airborne pollutants from indoor air. The Association of Home Appliance Manufacturers (AHAM) developed the CADR system as a standardized way to compare the performance of different air purifiers.

CADR is typically expressed in cubic feet per minute (CFM) and indicates the volume of clean air that an air purifier can deliver. The three main pollutants for which CADR is measured are:

  1. Smoke: Represents the ability of the air purifier to remove small particles like those found in tobacco smoke, dust, and pollen.
  2. Dust: Indicates the air purifier's effectiveness in removing larger particles like dust mites, pet dander, and pollen.
  3. Pollen: Reflects the air purifier's efficiency in eliminating particles of pollen, which can be a concern for individuals with allergies.

Higher CADR values mean that the air purifier is more efficient at removing the specified pollutants from the indoor air. When choosing an air purifier, it is recommended to consider the CADR ratings for your specific needs and room size to ensure effective air purification.


ACH: Air Changes Per Hour

ACH stands for Air Changes Per Hour. It is a metric used to measure the effectiveness of ventilation or air circulation in a given space. ACH represents the number of times the entire volume of air in a room or space is replaced with fresh air within one hour.

For example, if a room has an ACH of 5, it means that the entire volume of air in that room is replaced with fresh air five times in one hour. The higher the ACH value, the more frequently the air is exchanged, leading to better indoor air quality.

ACH is an important consideration for various settings, including residential spaces, offices, hospitals, and other indoor environments. Proper ventilation and an appropriate ACH rate are essential for maintaining good indoor air quality and reducing the concentration of indoor air pollutants, allergens, and contaminants. Different environments may require different ACH rates based on the activities conducted and the potential sources of pollutants present.


Noise Level:

As air purifiers operate, they generate noise. The noise level is an important consideration, especially when using the purifier in quiet environments. Lower noise levels are usually preferred. 

Rainbow: 34-60 dB

MEGA1000: 35-64 dB


Filter Types:

Air purifiers use different types of filters, such as pre-filters, activated carbon filters, HEPA filters, etc. The filter type directly impacts the purifier's effectiveness and lifespan.

MEGA1000 and Rainbow use composite filter contains pre-filter, activated carbon filter, HEPA filter.


Filter Grades:

  • Pre-Filter: The pre-filter is the first line of defense in an air purifier and is designed to capture large particles such as dust, pet hair, and other debris.
  • Medium Efficiency Filter: The medium efficiency filter falls between the pre-filter and the high-efficiency filter (HEPA filter). It is effective in removing medium-sized particles like dust, pollen, and mites.
  • High-Efficiency Particulate Air (HEPA) Filter: HEPA filters are high-efficiency filters designed to capture small particles, including bacteria, viruses, smoke, and fine particles like PM2.5 and PM10. HEPA filters come in different grades, such as H11, H13, H14, etc., based on their filtering efficiency.
  • Activated Carbon Filter: Activated carbon filters are used to remove gaseous pollutants and volatile organic compounds (VOCs) like formaldehyde, benzene, and ammonia.
  • Specialized Filters: Apart from the common filters mentioned above, there are specialized filters like photocatalytic filters, electrostatic filters, and others, which serve specific filtration purposes based on their unique properties.

The choice of filter grade depends on the desired air purification effectiveness and the specific pollutants you want to target. When purchasing an air purifier, understanding the performance and applicability of different filter grades can help you select the appropriate one to achieve the desired air purification results.



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CARB: California Air Resources Board

CleanForce Air Purifier complies with the State of California’s testing, electrical safety, and ozone requirements specified in Title 17, California Code of Regulations, subchapter 8.7 “Indoor Air Cleaning Devices” (air cleaner regulation).

ETL: Electrical Testing Laboratories

The term "ETL listed" typically refers to a product or device that has been tested, evaluated, and certified by a recognized organization to meet specific safety and performance standards. The acronym "ETL" stands for "Electrical Testing Laboratories."

However, it's worth noting that the term "ETL" is often associated with "Intertek," a major testing, inspection, and certification organization. Intertek provides the ETL certification mark, which indicates that a product has undergone testing and meets relevant safety standards.

The ETL certification is comparable to other safety certifications like UL (Underwriters Laboratories) or CSA (Canadian Standards Association) certifications and is widely recognized in the United States and other countries.

When a product is labeled as "ETL listed," it means it has been certified by Intertek and is considered safe to use based on the applicable safety standards. It's essential to look for such certifications when purchasing electrical or electronic products to ensure they meet safety and quality requirements.


CP65: California Proposition 65

CP65 is a law in the state of California, USA, aimed at protecting the public from exposure to specific chemicals. The purpose of Proposition 65 is to ensure that consumers are given proper warnings about products that may contain chemicals known to cause cancer, reproductive harm, or developmental toxicity.

Under this law, manufacturers, distributors, or retailers selling products to California residents that contain certain chemicals listed in Proposition 65 must provide appropriate warnings. The list includes hundreds of chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.

If a product is labeled with a "CP65 warning" or "California Proposition 65 compliant," it means it may contain some of the chemicals listed in Proposition 65. It doesn't necessarily mean the product is unsafe, but rather, it is a requirement to inform consumers about the presence of certain chemicals and potential risks.

It's essential for manufacturers and retailers selling products in California to be aware of and comply with Proposition 65 regulations. Keep in mind that this law applies only to products sold within the state of California.


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