Air Purifiers are the need of the hour. It can refresh stale air and can reduce the chances of health issues caused by air pollution, which can trigger respiratory infections or aggravate symptoms in asthma sufferers. Quality air purifiers eliminate several types of indoor air pollutants, keeping us healthy.
However, for people who are buying air purifiers for the first time it is important to know some terms as it can be confusing for first-time buyers. It is important to know the terms as there is a good chance you will acidentally select an air purifier that isn’t right for your home. To make the most informed buying decision, it’s important that you know the terms that are used by the manufacturer and seller.
MERV : Minimum Efficiency Reporting Value (MERV) is a standard that rates the overall effectiveness of air filters, specifically large purifiers intended to clean an entire house or building. Higher-value MERV rating equates to finer filtration, meaning fewer dust particles and other airborne contaminants can pass through the filter.
CADR: The clean air delivery rate tells you the volume of filtered air that the device can blow out. This is critical because a higher CADR number is what you are looking for.
ACH: This stands for air changes per hour. Each purifier comes with a room size rating. What is important is how quickly the purifier can change all of the air in that given space per hour. ACH rating of six to eight is a must.
CFM: The cubic feet per minute measures how many cubic feet of air move through the unit per minute. You need a higher CFM.
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