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coway airmega air purifier Eco Mode

A True Moneysaver — Eco Mode

Designing for the future

One of the most persistent issues in modern engineering is energy consumption. For Coway, it’s a core tenet that drives our research and development. When you develop a product to do the same job as its predecessor, but with half the energy, you know you are building a sustainable future. Consequently, the air you breathe can now be free from harmful contaminants like agricultural runoff, VOC’s, bacteria and viruses, without drastically raising your energy use.


Set it and forget it

The feature, Eco Mode, is built into the Smart Mode setting of our Airmega air purifiers. This mode’s basic function is to cease operation in favor of saving energy once it is unneeded. If the current air quality level remains healthy and stable for 10 minutes in Smart Mode, the fan will stop. If 30 minutes pass, or rising levels of air pollution are detected, the fan will automatically activate.


Save energy, save cost

Smart Mode is a good default setting — as you don’t have to worry about manually operating your Airmega, if you are temporarily absent from your home. When air quality remains at stable, healthy levels, Eco Mode can conserve up to 75% of the energy that the fan would have otherwise consumed. With this mode, beneficiaries will be able to accumulate serious cost savings over time.

Based on our calculations using Los Angeles electricity costs ($0.25 per kWh) it would cost the AP-1512HH the following to run continuously for 30 days without stopping:

LV1: $2.66 @ 3.7 Wh

LV2: $6.08 @ 8.45 Wh

LV3: $50.18 @ 69.7 Wh

When it comes to Eco Mode, the exact amount of savings varies widely due to the air quality of its space. When compared to Wirecutter's recommendation of staying on medium (assuming LV2), you could save up to a range between $3-$5 a month (assuming you do not live in a desert or any other rural environment). This equates to a 75% decrease of the unit’s energy consumption considering all possible variables. However, the AP-1512HH is fundamentally a low-energy consuming appliance, thus Eco Mode will not likely generate a substantial dollar amount in savings. Those users who are accustomed to running the unit on fan speed 3 for an abnormal duration will reap the most value from implementing Eco Mode into their daily routine.


Explore more about Airmega here





1Coway air purifiers have been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL (Korea Conformity Laboratories) testing.They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers.
→ Tested with Airmega Aim, 100, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250 Art, 250S, 300, 300S, 400, 400S, ProX

299.97% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard.
→ Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250 Art, 250S, 300, 300S, 400, 400S
→ All tested by JFRL and received above result within below time.

All tested by JFRL and received above result within below time.

- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes
- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes
- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes
- Pollen: Tested with Cedar Pollen extract, 60 minutes

3Aerosol test conducted in a Biosafety level 3 laboratory with two Coway air purifier models, Coway Airmega 250 and 400 for removal of SARS-CoV-2 Aerosol by US based MRI Global, a not-for-profit laboratory and partner of US Department of Defense. The test was conducted in a 13.1ft3 chamber. Virus was aerosolized for 15 minutes and the product was turned on high for 2 minutes. Result showed each product effectively removed over 99.98% of the SARS-CoV-2 in 2 minutes. This is a result from a laboratory experiment condition and result may vary in different conditions. This result does not imply it kills SARS-CoV-2 or prevents the transmission of Covid-19. Coway Airmega 250S and 400S are identical to the tested models and has equal performance with an additional mobile connectivity function.

4The concentration of ammonia, acetaldehyde and acetic acid were proven to be removed within 30 minutes by FCG Research Institute, Inc. Human Life Science Lab. It is not a demonstration result in the actual use space. Not all odors and gases may be supported. → Tested with Coway Airmega 150, 160, AP-1512HH, AP-1512HHS, 400, 400S

5The coverage area of the air purifier is based on an area where the air cleaner can make two air changes per hour (ACPH). An air change per hour translates to how many times an air purifier can clean an area, assuming the height of a ceiling to be 8 ft, in one hour. Therefore ** means two air changes per hour means that the cleaner can clean the area once every 30 minutes and * means air changes per hour means that the air purifier can clean the area once every 60 minutes.

10Terms and conditions apply. Discounts, including promotions, coupons, bundle discount and subscription discount, cannot be stacked on top of other coupons. During promotional periods, discount codes will not be able to be applied to orders. Promo codes may apply to products only—filters, accessories, and new products within 3 months of the release date are not included.