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Air Purifiers

5 Best-Of-The-Best Alen BreatheSmart Air Purifiers (2022 Review)

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alen air purifier reviews

Alen BreatheSmart is probably the best line of air purifiers ever created. Alen BreatheSmart air purifiers are all the rage. It’s not all about the exquisite design either; Alen has always been known as a top-notch best-of-the-best air purifier brand. Here are just a few things that make Alen air purifiers so great: Powerful yet … Read more

Categories Air Purifiers, Air Quality 2 Comments

MERV Rating Chart: Understanding 1-20 MERV Rating (For Filters)

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Before we look at the MERV rating chart (1-20 rating for 0.3 – 10 micron particles), let’s answer this question: Do you know why HEPA filters are called ‘HEPA’? It’s actually based on the MERV rating. MERV stands for Minimum Efficiency Reporting Value. The rating was devised by the American Society of Heating, Refrigerating and … Read more

Categories Air Purifiers Leave a comment

How Many Air Purifiers Do I Need? One For Every Room?

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calculated number of air purifiers needed for 2,000 sq ft home

Air purifiers can improve the air quality of the whole house. But what if you have an enormous 10,000 sq ft mansion; will a single air purifier be enough? Of course not. There is some confusion when it comes to air purifiers. In general, these are two kinds of homeowners: The ones with small homes … Read more

Categories Air Purifiers Leave a comment

5 Simple Yet Effective Ways How To Improve Indoor Air Quality Today

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how to increase indoor air quality

The quality of the air we breathe matters. Getting the fresh air from time to time is helpful. However, we spend more than 80% of our time indoors. Our lungs are thus intricately connected to the indoor air quality. According to EPA’s study ‘Report to Congress on indoor air quality’, “Americans, on average, spend approximately … Read more

Categories Air Purifiers Leave a comment

Where To Place Air Purifier? (7 Golden ‘Best Place’ Rules + Bonus Tip)

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where should i put an air purifier in a room

Two identical air purifiers can have a completely different impact on the indoor air quality. And it all comes down to where you place the air purifier. Generally, you can increase the efficiency of the air purifier by up to 20% if you correctly place it. What is even more important, if you put it … Read more

Categories Air Purifiers 57 Comments

How Do Air Purifiers Work? (Basics Explained: Fan + Filters)

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explaination of how air purifier work to clean air

The basic concept of how air purifiers work is quite simple. We start with the need for every household to have a high indoor air quality. According to the EPA’s Indoor Air Quality report: “Americans, on average, spend approximately 90 percent of their time indoors, where the concentrations of some pollutants are often 2 to … Read more

Categories Air Purifiers 1 Comment

9 Best Air Purifiers In 2022 (Based On 529 Top Air Purifiers Spec-By-Spec Anaylsis)

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list of best air purifiers currently on the market

The best air purifiers are, essentially, 3D Roombas. Roomba will vacuum the floor (2D space) and make sure we don’t get our feet dirty. The best air purifiers do much the same job in 3D space; they increase the air quality in our homes and protect our lungs. Note about the methodology of selecting the … Read more

Categories Air Purifiers 4 Comments

6 Best Air Purifiers For Mold In 2022 (With Mold-Eradication Filters)

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Here’s why air purifiers for mold are important: Visible and even smelly mold growth is one of the most common and most resilient home infections. You know that corner in your kitchen or bathroom that looks darkish? You better hope it’s not the black mold. Pretty much every air purifier you can find will have … Read more

Categories Air Purifiers, Air Quality 1 Comment

Air Changes Per Hour Calculator (CFM Based Formula + Examples)

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calculator that calculates air changes per hour from cfm and ach formula

ACH or Air Changes Per Hour is a metric that tells us how many times an HVAC device can fill up the full volume of a room with air. This is especially useful when comparing different air purifiers or air conditioners. Example: Let’s take an air purifier with 250 CFM airflow. We put it in … Read more

Categories Air Purifiers, Fans, HVAC Metrics And Calculators 56 Comments
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HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

 

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