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Cold Water Purifier Price range: $40.99 through $1,699.00
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Water Softener Price range: $43.99 through $699.00

Ultra Air Purifier

Price range: $51.99 through $1,899.00

  • Quatro Power / Low-Noise Design
  • Intensive Circulation Mode / Wide Mode
  • Powerful filtration system that removes 99.9% of ultrafine particles as small as 0.02㎛
  • Product Size (W x H x D): 19.6 x 12.8 x 31.4 inches
  • Coverage Area: 1,688 ft² at 2 air changes per hour**

AP-3018B PRICE

Coway Noble Air Purifier AP-2023K size guide showing detailed dimensions for height, width, and depth to ensure perfect installation.

(W x D x H) : 19.7 x 12.9 x 31.5inch

Weight : 44.1ℓb

1 air change /hr.* 2,992 ft² (277 m²)

2 air changes/hr.** 1,496 ft² (138 m²)

º 4D Pre-Filter
º Fine dust Filter - 6 mo ($40)
º Deodorization Filter - 24 mo ($46)
º Particulate Filter - 12 mo ($69)

Terms (Years) Rental (Visit) +tax Rental (Self) +tax Purchase +tax
6 $55.99 $51.99
5 $63.99 - $1,899
3 $69.99 $62.99
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SKU: AP-3018B Category: Tag:
Description

Performance of the AP-3018B Air Purifier

The coverage area of the Coway Ultra Air Purifier is based on the area in which the purifier can perform 2 air changes per hour (ACPH). Air changes per hour refers to how many times the air purifier can circulate and clean the air within a space each hour.

  • Pre Filter | Fine Dust Filter | Deodorization Filter | Particulate Filter

Recommended Coverage Area:

  • 2,992 ft² (277 m²) at 1 air change per hour* | 1,496 ft² (138 m²) at 2 air changes per hour**
Pricing table for Coway Airmega 300S AP-3018B: 6-year rental from $51.99, 5-year rental at $63.99 with $1,899 purchase option, and 3-year rental from $62.99 per month.

Powerful Filtration System

The powerful dual power system and 14 filters draw in polluted air from both the front and rear sides of the unit, then release purified air through the top of the product, providing faster and more efficient air purification for the air you breathe.

Quattro Power System

The Quattro Power System features dual motors, dual fans, and 14 filters to deliver powerful and stable air purification. In addition, Coway’s advanced aerodynamic technology provides a clean air solution designed with both your home and the environment in mind.

Turbo Circulation Mode

Fast and powerful purification from nearby areas to distant spaces.

Intensive Circulation Mode

Focused purification for nearby air.

Wide Circulation Mode

Provides balanced and thorough purification throughout wide spaces.

Visual diagram of Coway AP-3018B Ultra Air Purifier's Quattro Power system, illustrating wide, intensive, and turbo circulation modes with a single powerful engine.
Detailed diagram of Coway AP-3018B Ultra Air 4-stage dual filtration system showing Microfiber Pre-filter, Micro Dust Filter, Deodorization Filter, and Particulate Filter on both sides.

Powerful Filtration System

Over 90% removal of 0.01㎛ fine particles

Coway’s four-stage differentiated filter system reduces ultra-fine dust and odors to keep indoor air clean. It also provides a powerful dual-power system for inhaling contaminated air and a front-facing accumulator for fresh air to provide faster, finer air handling.

*Tested by Kimm (Korea Institute of Machinery and materials) over 90% removal of 0.01 ㎛ microparticle (*at maximum airflow in the airtight chamber for more than 60 minutes) (2018.07.20 by KIMM report) 

1. Performance tested by KIMM (Korea Institute of Machinery and Materials), to measure how long it takes to remove over 90% of the 0.01㎛ fine particles when operating the air purifier, Operated to measure the particle reduction rate over time (according to the internal standard of the KIMM) of the AP-1018F model (recommended coverage area 33m2 with filters), in chamber and under environmental conditions of the Korea Air cleaning Association (SPS-KACA 002-132, Indoor air purifier performance Test) after providing 10nm (0.01㎛) of particles into the chamber. 
2. Particle removal rate by an air purifier operation is tested until the background concentration of 0.01㎛ particles reaches 1 X 105/cm3 in the test chamber (30.4 m3) at temperature (℃) 20 ±1 / Relative Humidity (%) 48 ± 1 %
3. The fine particle removal rate is tested in an airtight laboratory environment by a specific model of an air purifying device. Actual performance and test are subjected to change depending on the region and product specification.

*As a result of testing CA certification standards, the removal rate of removal of harmful gases is 93%. (30 minutes of operation in the chamber), (Based on 2018.05.03 CA Certificate)

1. Harmful gases removal test is based on CA certification by the Korea Air Cleaning Association (SPS_KACA 002-132:2018, indoor air purifier removal test), AP-1018F model (recommended coverage area 33 m2 with filters) for Ammonia, Acetic acid, Acetaldehyde, Toluene, Formaldehyde
2. Tested in the chamber (8.0 m3) at temperature (℃) 23 ±5 / Relative Humidity (%) 55 ±15, and for deodorization test. The initial concentration of gas for testing is 10 ppm and the tolerance for concentration is 10%.
3. The harmful gas removal rate is tested in an airtight chamber laboratory environment by a specific mode of an air-purifying device based on a test standard of the Air Cleaning Association. The test is subject to change depending on the region and product specifications.

Low Noise Design

The low-noise design minimizes noise and vibration, providing a quieter and more comfortable environment.

Coway AP-3018B Ultra Air Purifier operating quietly in a home library setting, featuring a low-noise speaker icon to symbolize its whisper-quiet performance.
Instructional diagram of Coway AP-3018B Ultra Air Purifier display showing PM 2.5 and PM 10 indicators, and the control panel with touch buttons for power, mode selection, and fan speed.

Ultra Air Purifier Q&A

Q1: What is the coverage area of the Coway Ultra Air Purifier AP-3018B?

A: The Ultra Air Purifier is optimized for large spaces and can cover up to 1,496 ft² (138 m²) at 2 air changes per hour (ACPH), or up to 2,992 ft² (277 m²) at 1 air change per hour. It is suitable not only for living rooms, but also for large commercial spaces such as offices and cafés.

Q2: What is the Quattro Power System?

A: It is a system equipped with dual motors, dual fans, and a total of 14 filters that powerfully draw in polluted air from both the front and rear sides of the unit. Through this process, purified air is quickly discharged through the top, rapidly improving indoor air quality.

Q3: I would like to know about its ultrafine dust removal performance.

Through Coway’s differentiated 4-stage dual filtration system, the purifier removes over 90% of ultrafine particles as small as 0.01㎛ while effectively reducing fine dust and everyday odors. Its performance has been verified through testing conducted by the Korea Institute of Machinery and Materials (KIMM).

Q4: Are there circulation modes that can be selected depending on the situation?

A: Yes. It supports multiple circulation modes, including Turbo Circulation for quickly purifying air even from distant areas, Intensive Circulation for focused purification of nearby spaces, and Wide Circulation for balanced purification across large areas, allowing customized air cleaning based on your needs.

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Contract Policies

Delivery & Installation

For both rentals and purchases, delivery and installation are provided free of charge in serviceable areas.

Filter Replacement & Maintenance

Filter replacement and regular maintenance services are provided every 6 months. Our Coway service technician will contact you in advance and visit your home on the scheduled date and time to provide the service free of charge.

For Self-Care products, replacement filters will be delivered by mail, and customers are responsible for replacing the filters themselves. This service is also included in the rental fee.

Moving & Reinstallation

If you are moving, please contact our customer service center in advance to schedule the service.
There is a $50 fee for product removal and a separate $50 fee for reinstallation.

Contract Cancellation

If the contract is canceled before the end of the agreement term, 60% of the remaining balance will be charged as an early termination fee.

However, for U.S. military personnel, if Coway service is unavailable in the new assigned location, the contract may be canceled without penalty upon submission of the required documents requested by headquarters.