By the time you land on our site, you’ve likely already made an important decision–to make clean air a fundamental part of your lifestyle.
That might sound obvious, but many of us don’t even give much thought to the air we breathe until we’re confronted by a wildfire, heavy pollen season, or air quality alerts in our region. By then, the damage could already be done.
Once you recognize that you need an air purifier, the next step is to determine which size and model is best for your family and lifestyle. All of us want the most energy-efficient match for the area coverage required. So if you’re currently asking yourself “What size air purifier do I need?” it’s time to break down some technical concepts, such as Clean Air Delivery Rate and Cubic Feet Per Minute.
What Is Clean Air Delivery Rate?
You wouldn’t buy a new car without checking the fuel consumption in miles per gallon, or a new washing machine or dishwasher without looking up the Energy Star rating.
Likewise, we wouldn’t want you to buy any air purifier without a transparent guideline of what performance to expect. Luckily, we have some help from Energy Star, which uses Clean Air Delivery Rate testing data as the basis of its certification.
Clean Air Delivery Rate (CADR) is the metric to measure air purification and filtration performance. To test CADR, an air purifier is isolated in a room and exposed to three kinds of environmental pollution:
The test measures how many Cubic Feet Per Minute of that pollutant the air purifier can remove.
The higher the number, the faster the rate of filtration.
There is a (quite complex) formula for calculating CADR, but realistically, you wouldn’t ever need to work it out.
Here’s What You Need to Know About CADR
The only numbers you really need to pay attention to are:
-
The CADR as listed by the manufacturer or recorded on the Aham Verifide directory.
-
For example, you’ll see in the product description that the Airmega 400 has a CADR of 285 (smoke), 358 (dust) and 450 (pollen).
- This number multiplied by 1.55.
That’s because, according to the AHAM “two-thirds rule”, the CADR of an air purifier or filter should be at least two-thirds the surface area of the room it is covering.
So if your air purifier is listed by the manufacturer as having a CADR of 300:
Calculate 300 x 1.55 = 465.
Therefore your device will work efficiently in a room of up to 465 square feet.
A Warning About CADR
It’s worth noting that CADR is designed to measure the performance of an air purifier working at full speed within a small (around 1,008 square feet) chamber.
The test measures how fast particles are removed, so it is not a useful reference for:
- Filtration quality
- Performance in Eco-mode or on auto setting
- Effectiveness in redistributing clean air to all parts of the room
As a result, it’s best to use CADR as a way of comparing similar models/brands, but not necessarily as a way of evaluating ultimate performance.
How to Choose the Size of Your Air Purifier
At Cowaymega, we’ve done all the math for you and have conducted our own rigorous testing to prove how efficient our air purifiers are in removing the particles other models can’t catch.
We’re proud of the fact that our patented HyperCaptive Airmega filtration system removes 99.999% of particles from the air (down to 0.01 ㎛).
It can help to filter your search by identifying the size of space you are looking to cover. This will then show you the most appropriate models for that category.
-
Finally, you have the Airmega 160, 150, 100 and Airmega Aim for small spaces where purification of up to 1,035 ft2 per 60 minutes is required.
The Importance of Filtration Quality
To go back to the car or washing machine analogies, you wouldn’t be happy with a car that had great fuel efficiency but belched blue smoke from the exhaust, or a washing machine that didn’t get your clothes clean (however energy efficient). Similarly, there’s no advantage in buying an air purifier that is the fastest in its category at delivering average-quality air.
So while the Clean Air Delivery Rate is impressive and competitive on all our units, it’s not what sets them apart.
What really matters is the air quality an air purifier can obtain. In that respect, the performance of our Max2 filter system is peerless. Our Active Carbon Filter and Green TrueHepa technology capture the smallest bacteria, mold, and virus particles—whatever the size of your space.
Features That Enhance Air Purifier Performance
We also understand that most people don’t simply want to switch on their air purifier and leave it to run for the rest of the day at the same speed. Not only is that inviting a formidable electricity bill, but it’s also reducing the longevity of your filter for no tangible benefit.
That’s why we incorporate real-time monitoring into our units so that your filtration is working hardest when it’s needed most. You can also enjoy smart mode, which switches between our pre-set modes (i.e. auto, eco or sleep) automatically.
In short, you don’t need to bring your calculator out to determine the size of the air purification unit you need for your home or office. We’ve run the lab tests and have sorted the selection accordingly. Tell us the coverage you require today, and we’ll show you the model that’s more than a match for the task.
Source:
https://www.energystar.gov/productfinder/product/certified-room-air-cleaners/results
What Size Air Purifier Do I Need?
By the time you land on our site, you’ve likely already made an important decision–to make clean air a fundamental part of your lifestyle.
That might sound obvious, but many of us don’t even give much thought to the air we breathe until we’re confronted by a wildfire, heavy pollen season, or air quality alerts in our region. By then, the damage could already be done.
Once you recognize that you need an air purifier, the next step is to determine which size and model is best for your family and lifestyle. All of us want the most energy-efficient match for the area coverage required. So if you’re currently asking yourself “What size air purifier do I need?” it’s time to break down some technical concepts, such as Clean Air Delivery Rate and Cubic Feet Per Minute.
What Is Clean Air Delivery Rate?
You wouldn’t buy a new car without checking the fuel consumption in miles per gallon, or a new washing machine or dishwasher without looking up the Energy Star rating.
Likewise, we wouldn’t want you to buy any air purifier without a transparent guideline of what performance to expect. Luckily, we have some help from Energy Star, which uses Clean Air Delivery Rate testing data as the basis of its certification.
Clean Air Delivery Rate (CADR) is the metric to measure air purification and filtration performance. To test CADR, an air purifier is isolated in a room and exposed to three kinds of environmental pollution:
The test measures how many Cubic Feet Per Minute of that pollutant the air purifier can remove.
The higher the number, the faster the rate of filtration.
There is a (quite complex) formula for calculating CADR, but realistically, you wouldn’t ever need to work it out.
Here’s What You Need to Know About CADR
The only numbers you really need to pay attention to are:
That’s because, according to the AHAM “two-thirds rule”, the CADR of an air purifier or filter should be at least two-thirds the surface area of the room it is covering.
So if your air purifier is listed by the manufacturer as having a CADR of 300:
Calculate 300 x 1.55 = 465.
Therefore your device will work efficiently in a room of up to 465 square feet.
A Warning About CADR
It’s worth noting that CADR is designed to measure the performance of an air purifier working at full speed within a small (around 1,008 square feet) chamber.
The test measures how fast particles are removed, so it is not a useful reference for:
As a result, it’s best to use CADR as a way of comparing similar models/brands, but not necessarily as a way of evaluating ultimate performance.
How to Choose the Size of Your Air Purifier
At Cowaymega, we’ve done all the math for you and have conducted our own rigorous testing to prove how efficient our air purifiers are in removing the particles other models can’t catch.
We’re proud of the fact that our patented HyperCaptive Airmega filtration system removes 99.999% of particles from the air (down to 0.01 ㎛).
It can help to filter your search by identifying the size of space you are looking to cover. This will then show you the most appropriate models for that category.
The Importance of Filtration Quality
To go back to the car or washing machine analogies, you wouldn’t be happy with a car that had great fuel efficiency but belched blue smoke from the exhaust, or a washing machine that didn’t get your clothes clean (however energy efficient). Similarly, there’s no advantage in buying an air purifier that is the fastest in its category at delivering average-quality air.
So while the Clean Air Delivery Rate is impressive and competitive on all our units, it’s not what sets them apart.
What really matters is the air quality an air purifier can obtain. In that respect, the performance of our Max2 filter system is peerless. Our Active Carbon Filter and Green TrueHepa technology capture the smallest bacteria, mold, and virus particles—whatever the size of your space.
Features That Enhance Air Purifier Performance
We also understand that most people don’t simply want to switch on their air purifier and leave it to run for the rest of the day at the same speed. Not only is that inviting a formidable electricity bill, but it’s also reducing the longevity of your filter for no tangible benefit.
That’s why we incorporate real-time monitoring into our units so that your filtration is working hardest when it’s needed most. You can also enjoy smart mode, which switches between our pre-set modes (i.e. auto, eco or sleep) automatically.
In short, you don’t need to bring your calculator out to determine the size of the air purification unit you need for your home or office. We’ve run the lab tests and have sorted the selection accordingly. Tell us the coverage you require today, and we’ll show you the model that’s more than a match for the task.
Source:
https://www.energystar.gov/productfinder/product/certified-room-air-cleaners/results