Molekule PECOAir review

The PECOAir is Molekule's newest purifier, and it adds third-party certified HEPA filtration to the company's PECO technology. The PECO-HEPA Advanced filter combines HEPA media, activated carbon and Molekule's photo electrochemical oxidation layer, which the company says breaks down VOCs, bacteria and viral matter. Molekule rates it for rooms up to 875 sq ft and lists 32 dBA on the lowest speed and 55 dBA on the highest. Sensors read PM1.0 to PM10, TVOC, humidity and temperature, and the app grades your air and logs spikes. Modes cover Auto Protect, Sleep and Deep Clean. The price is $499 with free shipping, a 30-day trial and a 2-year warranty, and two filters come in the box. Running costs are the issue: Molekule recommends a filter change every six months, and its subscription is $99 per delivery, about $198 a year. There is no published CADR, and the 32 dBA floor is louder than every HEPA tower above it.

Who it is for

buyers who want sensors and app reporting in a design-led unit

Price

$499 with free shipping on Molekule's US store.

PECOAir only $499 Free shipping 30-day trial 2-year warranty
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Rated for rooms up to 875 sq ft
• Sound levels of 32 dBA on the lowest speed to 55 dBA on the highest
• PECO-HEPA Advanced filters with HEPA and activated carbon
• PM1.0 to PM10, TVOC, humidity and temperature sensors
• Auto Protect, Sleep and Deep Clean modes

Strengths and weaknesses

• Strength: The most complete sensor set on this list, including TVOC
• Strength: Ships with 2 filters, and a filter subscription costs $99 every 6 months
• Strength: Free shipping, 30-day trial and 2-year warranty
• Weakness: Molekule recommends replacing filters every six months, so the subscription alone is $198 a year
• Weakness: 32 dBA lowest setting is louder than the Coway, Winix, Blueair and Levoit
• Weakness: No CADR published on the product page

Key facts

• Room size: Up to 875 sq ft
• Noise: 32 to 55 dBA
• Filter replacement: Every 6 months
• Filter subscription: $99 every 6 months
• Weight: 17.5 lbs

Where it ranks

Molekule PECOAir is No. 9 in our Best Air Purifiers verdict.