|Blueair Air Purifiers - Measuring CADR|
Blueair Air Purifiers - Measuring CADR
The technological advances that BlueAir has demonstrated over the years have earned the company the highest CADR rating in the field. CADR stands for Clean Air Delivery Rate and it is the best way to measure the effectiveness and performance of different air purifier models and brands. CADR is the complete volume of air that a unit is able to cleanse of a specific contaminant in one minute. The most effective air purifying system can be found by comparing the CADR if other factors such as the particle size or filter efficiency are the same. The Association of Home Appliance Manufacturers is the organization that performs testing for the CADR. The U.S. Environmental Protection Agency and the American Lung Association recognize the results of the test. CADR results are measured in cubic feet per minute. It shows a number rating for three different pollutants. The pollutants tested are tobacco smoke, dust and pollen. These are the three most common contaminants found in air. The CADR results measure factors such as the size of the particle removed, what percentage of the particle was removed and the volume or amount of air that is actually moving through the system. The higher the number of the results score is, the more effective the system being tested is. If the CADR number is high, the air purification system will be able to clean the indoor air at a high rate.
The air volume of a system is the number of times the air is processed by the purifier within a given period of time. There are some companies who use their air exchange rate as their CADR rate but this is incorrect. The two numbers are completely different and it would not be accurate to say the two would calculate the same numbers. The CADR rate is the number that gives a much more accurate look at the way an air purifier will perform. The CADR results take into account not just how much air is flowing through the purifier or how many particles were removed but also the overall performance of the unit once all of these factors are examined. The CADR results give the consumer a well-balanced analogy of the performance and general effectiveness of the air purifier.
The filter in the BlueAir systems is also proven to be more effective than a regular HEPA filter. The HEPASilent filter used is able to absorb particles that are 0.01 microns and smaller. This is important because many regular filters can only filter out particles smaller than 0.03 microns, which skips out on a range of particles still left in the air.
The measure of one micron is equal to 1/25,000 of an inch. The particles in the air that have a measurement range of 0.03 to 0.09 microns are the ones that have been proven to be the most contaminant to humans. A dust mite allergen, however, can be as small as 0.01 to 0.03 microns in size. A staphylococcus particle is measured to be about 0.07 microns. These dangerous yet small-sized particles also include dust, pollen, pet dander, auto exhaust, mold spores, bacteria, and particles from technological equipment. Particles that fit into this size range are small enough to fit inside a human¡¯s nasal passages and not be blocked by the tiny hairs in noses and ears. They are also too large to be able to be exhaled or blown out from the mouth. This characteristic is what makes them so dangerous to people¡¯s health. These particles are more likely to be stuck in the lung tissue and cause infection or allergy irritation.
The smaller contaminants that are picked up by the HEPASilent filter and are in the size range of 0.01 to 0.03 microns are easier to exit the body once they enter but can still cause damage to humans? health. These particles can cause irritation to breathing passages by simply entering the body and can also cause damage to the lungs if they are able to get deep enough into the breathing passages. The filtration system used by BlueAir products is the best system for people sensitive to these particles. People with asthma, cardiovascular disease allergies or any other type of respiratory conditions can breathe easier with a HEPASilent filter.