Air purifiers are the best way to protect your family from poor air quality, but if you don’t carefully choose your model according to the room in your home, you will either waste money, get little effect, or worse, jeopardize your family’s health (#4 especially!).
This guide covers the little known details that you must know BEFORE buying an air purifier.
All air purifiers are all the same, right?
Each model has its own power, efficiency, and unique capabilities that affect how well it cleans the air and keeps you safe.
However, the #1 mistake buyers make is not selecting an air purifier based on the room it occupies.
Here are a few key tips and a short, room-by-room guide to help make your decision easier.
READ BEFORE BUYING - 4 Things to Consider Before Buying
Let’s start off with what to consider before choosing an air purifier for your room. Pay special attention to each factor. It can make a major difference.
#1 - Room Size
Room size is first and foremost. If you learn one thing from this article, let it be this: if you don’t get the proper air purifier for the size of the room, it will barely make a difference.
The standard room size calculation isn’t 100% reliable, but it’s the best measurement we’ve got.
Here’s a quick rundown on how to calculate the perfect (almost) sized air purifier for your room: CADR.
The Clean Air Delivery Rate (CADR) is the rate at which a certain area is cleaned of particles of a certain size. Basically, what that means is CADR measures how well the purifier does its job in a given area.
It was developed by the American Association of Home Appliance Manufacturers to help educate customers against false marketing claims.
CADR Formula: CADR = air flow (CFM) x efficiency. EX: CFM 200 x efficiency 50% = CADR 100
A good rule of thumb is your air purifier’s CADR x 7 = square footage of the room. You can allow a little leeway above that number, too. So that means a CADR of 100 means it can handle a little more than 700 square feet.
Two issues with CADR
CADR isn’t perfect. We have two minor issues with it.
For one, it only measures the cleaning of larger particles, which leaves out smaller particles that could still be dangerous. It also doesn’t take into account performance over time.
Still, in general, it is a VERY USEFUL rating. First, determine the square footage of your room. Then, use that to select a purifier with the proper CADR rating.
#2 - Room Usage
This seemingly minor detail can have a major impact on your choice of purifier and its resulting efficiency.
For example, a room that’s rarely used obviously doesn’t need one while a common room full of VOC-producing furniture needs as strong a model as you can buy.
However, it gets even more complex than that.
Here are two things to consider:
# 3 - Ventilation
Air purifier space requirements are great for ballpark figures, but good ventilation can seriously reduce a purifier’s workload.
Rooms with large windows and vents (e.g. your kitchen) benefit from excellent ventilation, meaning harmful particles and odors are more easily disposed of. A child’s bedroom, basement, or guest room may not have the same advantages.
This goes both ways, too. A bedroom with extremely poor ventilation needs an air purifier stronger than its space requirements may suggest.
# 4 - Type(s) of Pollutant
There are multiple different types of air pollutants. While some are relatively harmless, others may be life-threatening.
Identifying the air pollutants present in each room before buying will help you make an informed decision. If you don’t carefully select the model, you could be putting your health in jeopardy.
Don’t worry, it’s relatively easy to identify each one and quickly select a model specifically made to eliminate that threat and purify your air.
Let’s start with the most dangerous one first:
We bet you didn’t think THIS much went into selecting an air purifier for your home. Trust us, if you take the time to make the right selection, your family and your wallet will benefit. If anything, pay attention to numbers 1 and 4. It’s time to breathe a sigh of relief!