Air Purifiers for Large Room Up to 1200 Square Feet

Large rooms up to 1200 sq. ft. can accumulate a lot of contaminants in the air. In a large space, you may use either two or more compact air purifiers to remove dust, pollen, smoking, and other pollutants or to have one large and powerful air cleaner.

First and first, a personal note: I enjoy reviewing huge air purifiers for vast spaces. The reason is straightforward. Every air purifier brand brings its A-game when it comes to large room air purifiers.

The best filtration system (typically H13 HEPA filters), greatest CADR ratings, and largest maximal airflows are found in large air purifiers. Many of these huge air purifiers are top-of-the-line brands.

A word regarding space coverage before we go into the best 1200 square feet air purifiers. The recommended coverage regions for different large room air purifiers may range.

I recalculated all of the coverage based on either 2 air changes per hour (2 ACH) or 5 air changes per hour (5 ACH) to accurately compare them (5 ACH).

That’s how you may evaluate the top large air purifiers’ large room coverage areas side by side. You may also accurately assess the room size; a 2 ACH coverage area is common, while a 5 ACH coverage area is recommended for allergy sufferers.

With that in mind, let’s take a look at the top-rated large air purifiers and the following comparison. We’ll compare coverage areas, CADR ratings, and noise levels later on, but before you buy, make sure to read the individual reviews of these massive air purifiers.

So the list of best air purifiers for 1200 square feet looks like that:

Airpura P700 Air Purifier

The best air purifier for 1200 sq. ft. room or space.

The Airpura P700 Air Purifier removes dangerous gases, smells, volatile organic compounds (VOCs), and other contaminants from your indoor air. The P700 is ideal for use in business locations where off-gassing is widespread, such as manufacturing and painting, but it can also be utilized in homes with individuals who have impaired immune systems or various chemical sensitivities.

This air purification system uses Airpura’s TitanClean Reflector to break up gas and odor particles at the molecular level, as well as carbon and HEPA filters and a germicidal lamp.

Airganics 700 Filtered Air Purifier

The Airganics 700 is an odor neutralization and air filtering system that is both powerful and portable. Engineered for energy economy and the setting that allow to change the 200 to 700 CFM air flow in a matter of seconds, to fit any spaces up to 1200 sq. ft. with its variable speed control.

With the Airganics 700, you can quickly clean the indoor air in even the most challenging conditions. This sturdy air cleaner is ready to use right out of the box thanks to its user-friendly design.

With three layers of filtration, this Airganics filtered air purifier is an efficient solution against mold, mildew, biologically generated odors, airborne infections, dust, and more for growing applications, medical facilities, and labs.

Airganics 700 is very easy to use, and you can easily clean the air indoors inside your rooms, medical facilities, offices, kitchens and other places.

Smart Health Blast Air Purifier

The Blast is the most affordable, high-capacity, commercial-grade HEPA air purifier available.

It can clean up to 5,100 square feet in 30 minutes while producing very little noise (only 48db). As a result, the Blast is ideal for large facilities such as schools, hospitals, gyms, and businesses.

Its H13 HEPA filter collects viruses, germs, allergens, PM2.5, dust and dust mites, pollen, mold, and pet dander effectively, effectively cleansing the air you breathe.

The optional activated carbon filter captures toxic gases such as smoking, volatile organic compounds (VOCs) such as formaldehyde, benzene, and other VOCs, as well as harmful fumes and aromas produced by paints, cleaning products, and cigarettes.


That’s the best HEPA air purifier for 1200 sq. ft. I was able to find it on the market in 2022. Airpura is the leader in cleaning large houses, followed by Airganics and Smart Health Blast. They are equally good at removing smells, dust, and pollen due to their medical-grade filters and high CADR ratings.

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