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5 Best Energy Efficient Air Purifiers To Buy

5 Best Energy Efficient Air Purifiers To Buy


Air purifiers are an increasingly popular appliance in households across the country, as people become more aware of air pollution and its health risks.

Air purifiers can remove harmful particles and chemicals from the air, and the best of them filter out some insecticides and pet dander.

Why buy an air purifier?

If you’re someone who spends a lot of time indoors, has allergies or other serious problems associated with your breathing, an air purifier should be high on your list of appliances to purchase this year.

Choosing an air purifier

When it comes to choosing an air purifier for your home, there are many different options.

Depending on the size of your house and your particular sensitivities (i.e. allergies, asthma etc.), you might find that you’ll need to run your air purifier constantly, or at least several hours a day.

If you don’t choose your model wisely, you could end up spending more than you need to in electricity costs.

Air purifier wattage: how much energy does an air purifier use?

Breathing in clean air should be high priority for you; as such, your air purifier will likely stay powered up for a good chunk of your days. Thus, it’s prudent to ask: do air purifiers use a lot of energy?

The answer is actually no, air purifiers use very little energy. On average, they consume about 50 watts of energy per hour. That said, models vary significantly, and you will frequently find units that use quite a bit more wattage than that.

How much does it cost to run an air purifier?

Generally speaking, running an air purifier shouldn’t set you back more than $5 extra per month.

Assuming you run a 50W model for 10 hours a day for 30 days, and your electricity costs around $0.20 per kWh (1000W), the total monthly cost will be around $3.

Not much at all. But you can still reduce this amount further by choosing a low wattage air purifier.

We’ve selected 5 great models for you to choose from, 4 of which are under 40W, making them some of the lowest watt air purifiers on the market.

The Top 5 Low Watt Air Purifiers Under 60W


LEVOIT LV-H128 Air Purifier

as of June 10, 2024 5:13 am


COVERAGE AREA: 161 sq ft

WEIGHT: 3.3 lbs

Breathe just the way you like with this LEVOIT LV-H128 Air Purifier!

Designed to fit most rooms, this purifier is compact, powerful yet incredibly easy to use, with just one button control. With the 3 fan speeds, you can better control the removal toxins from the air.

The LEVOIT LV-H128 also features a HEPA filter, as well as an indicator to let you know when your filter needs changing. The 3-stage dual filter system is capable of capturing 99.97% of airborne particles that are 0.3 microns in size.

This air purifier is quiet on a general setting, though if desired, you can switch to sleep mode to reduce noise and light further for a restful night's sleep.

What's more, the aromatherapy pad lets you add scented oils to provide a fresh scent that will last throughout the day.

Pro: So quiet, you won't think it's on, even on the high setting. Also, in night mode, the lights go off completely.

Con: The light is very bright and might distract some people. Plus, the filter will need to be changed more frequently than stated.

Medify MA-25 Air Purifier

as of June 10, 2024 5:13 am


COVERAGE AREA: 500 sq ft

WEIGHT: 7.88 lbs

The MA-25 by Medify is an easy-to-use air purifier designed for homes with allergy sufferers.

With 3 different fan speeds, you can customize how much airflow is needed depending on your room’s size.

For allergy sufferers, this air purifier has a H13 True HEPA Filter with 3-layer filtration which captures 99.9% of particles, including most allergens like pollen, pet dander, mold spores & smoke.

A minimalist design allows this air purifier to fit into any room with ease while its compact size makes it easy enough to move around as needed.

The tempered glass touch screen provides simple control, letting you easily adjust the settings to your liking.

Medify's air purifier is equipped with a filter indicator, which alerts you when it’s time to change your filter; when that time comes, removal and replacement is a breeze.

The MA-25 also has a sleep mode, which reduces the light and sound, making the device great for night time.

Finally, for your added convenience, this air purifier comes with a child lock.

Pro: Cleans the air quickly, and is considered by some to be “hospital grade” quality.

Con: Loud on high power. The filter arrives in plastic, and instructions don't make clear that you must remove this before using the unit.

Pure Enrichment PureZone Mini Air Purifier

as of June 10, 2024 5:13 am



WEIGHT: 0.58 lbs

The PureZone Mini Air Purifier by Pure Enrichment is an easy-to-use solution for anyone who needs to improve their air quality on-the-go.

The HEPA Filter uses an extra pre-filter stage that captures even more hazardous particles in the air, making it one of the most advanced units on the market.

With 3 fan speeds to choose from you can customize how you clean your air in order to meet your needs.

The device is lightweight and compact with a sleek, versatile design that makes it great for travel or home use. It's quiet, too, and won't disturb you throughout the day or night.

This mini purifier also comes with a rechargeable battery that lasts up to 12 hours.

Pro: Lightweight and portable. No bright lights to distract.

Con: Loud and not as powerful as other models on this list.

Blueair Blue Pure 411 Auto Air Purifier

as of June 10, 2024 5:13 am


COVERAGE AREA: 190 sq ft

WEIGHT: ‎5.94 lbs

The Blueair Blue Pure 411 Auto Air Purifier is the one of the most powerful air purifiers of this size on the market. It removes 99% of harmful particles from the air in 60 minutes, and completely filters the air roughly every 12.5 minutes.

The combination HEPASilent filter removes 99.9% of particles down to 0.1 micron and destroys dust, pollen, viruses and bacteria on contact at a far greater degree than most competing models.

With the device's Intuitive Auto Mode, it automatically detects and readjusts to real-time conditions thanks to its built-in particle sensor.

The Blue Pure 411 is Energy Star rated – runs on less wattage than an LED light bulb. It's great for small rooms, and quiet to boot.

Pro: The unique auto feature will power up and change modes according to the type of pollutants in the air. Attractive pre-filters.

Con: Loud on the higher setting. Not as easy to operate as other air purifiers on the list.

Germ Guardian AC4825E Air Purifier

as of June 10, 2024 5:13 am


COVERAGE AREA: 153 sq ft

WEIGHT: 8.55 lbs

The Germ Guardian AC4825E Air Purifier is a 4-in-1 device that's powerful, quiet and efficient in purifying your air by eliminating dust, pet dander, viruses, strong odors and more.

It has a UV-C light that attacks mold spores and microorganisms in your home to allergens that make you sick.

This air purifier features a True HEPA filter that captures up to 99.9% of particles as small as 0.3 microns, as well as a pre-filter that captures larger particles and debris.

With 3 fan speeds, you can create the perfect air quality for any room; and the convenient filter indicator lets you know when it's time to change your filter.

The AC4825E is lightweight and thus easily transportable for use in other rooms in your home.

Pro: Great for removing pet dander and litter box smells from the air. Also, you can save money on buying replacement filters by doing a “filter hack” to make filters that work with this model.

Con: Highest speed setting is loud. No sleep mode.

What is the most energy efficient air purifier?

The lowest watt air purifier on our list is the Pure Enrichment PureZone Mini Air Purifier, coming in at just 7.5 watts. This is also the most portable air purifier of all the models on the list, making it great for frequent travelers who often stay in hotels and guest houses.