Coway Mighty air purifier with air quality sensor drops to $143.99 on Amazon

Two deal reports say the Coway Mighty air purifier is on sale at Amazon for $143.99, with free shipping. TechBargains published its listing on 13 November 2026. Slickdeals followed on 14 November 2026 and said the unit is available in black or white. Both reports describe the same Coway model line at the same price.

According to the TechBargains listing, the purifier is rated for rooms up to 1,748 square feet and can clean that space in 60 minutes. It uses four filter stages: a washable pre-filter, a deodorising filter, a bipolar device and a HEPA filter. The listing says the HEPA stage removes 99.97 percent of particles at 0.3 microns, including pollen and other allergens. It also says the unit reduces volatile organic compounds and odours.

The device has an auto mode. A pollution sensor reads indoor air quality, and the fan adjusts its speed as needed. A coloured LED shows air quality in real time and can be switched off, which the listing points out is useful for sleeping. A filter indicator signals when the main filter needs replacing and when the pre-filter needs cleaning.

The listing gives a three-year warranty and lists the model as AP-1512HH in white. The Slickdeals post refers to the same product as the Mighty Air Home LED purifier with a HEPA filter. Neither report describes how the sensor is calibrated or how precise its readings are, so buyers should treat the display as an indicator rather than a lab measurement.

Power is a practical point. The listing states that the unit is built for 120-volt outlets and may need a converter when used outside the United States. Readers in Europe, the UK or other regions with different mains voltage should check this before ordering. The prices in both reports are in US dollars, and the Slickdeals link points to the US Amazon site.

TechBargains also shows the product's standing on its page. The listing places it at number five among HEPA filter air purifiers and at 1,547 in the Home and Kitchen category. The same page shows replacement filter sets for the related Airmega 200M and AP-1512HH models. In the captured listings, these sets sell for around EUR 26 to EUR 27 each, with a list price of EUR 29.87 shown as a limited-time deal. Those offers come from different sellers and are not part of the $143.99 deal, so buyers should compare them separately.

Both sources are deal sites, and neither reports an end date for the discount. The reports do not say how many units are in stock, and they do not confirm whether the price applies in all colours. Slickdeals mentions both black and white, while TechBargains names the white version. Buyers should check the live Amazon page for the final price, colour and shipping terms before they order.

For readers who already run a smart home, the device is a standalone unit. The sources do not describe any app, hub or smart home integration. Anyone who wants to link the purifier to other devices should check its connectivity details with the seller or the maker before buying.

We will update this page if the sources report a change in price or availability.