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Independent·Affiliate-disclosed·Spec-verified·Updated August 7, 2026
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Head-to-head buyer guide

AlorAir Helios MP55 vs PuroAir 240

Specs, prices, editor verdict, and who should buy which - compared side-by-side.

By Ryan · Founder
Updated Jun 22, 2026
Quick verdict

AlorAir Helios MP55 (mid, $699.66) vs PuroAir PuroAir 240 (mid, $199.99) - different tools for different jobs (see the per-product details below).

Compared on 2 shared specs · same category (environment).

AlorAir Helios MP55 crawl space dehumidifier
AlorAir

Helios MP55

Indoor air quality is a longevity input most people ignore, and humidity is the lever underneath it. The AlorAir Helios MP55 is the crawl-space and basement dehumidifier that keeps a home dry enough to stop mold and dust mites before they reach the air you breathe.

PRICE
$699.66
View at AlorAir
PuroAir 240 HEPA air purifier
PuroAir

PuroAir 240

The PuroAir 240 is the high-volume best-seller of the affordable air-purifier world: HEPA-14 plus activated carbon, a rating up to 1,000 sq ft, an auto air-quality sensor, and a price that undercuts the premium names. It is the no-fuss bedroom-and-office pick.

PRICE
$199.99
View at PuroAir
The verdict

These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.

Side-by-side specs

SpecAlorAir Helios MP55PuroAir PuroAir 240
price$699.66$199.99
coverageUp to 1,500 sq ftRated up to 1,000 sq ft (best-case)
warranty5 years1 year

AlorAir Helios MP55 also publishes: type, capacity, drainage, certification, shipping

PuroAir PuroAir 240 also publishes: filtration, sensor, noise, filterLife

Who should buy which

Pick the AlorAir Helios MP55 if

Homeowners in humid climates, or anyone with a damp basement or crawl space, who wants to control humidity and mold at the source as part of a clean-air home. The built-in pump suits set-and-forget continuous drainage.

Skip if

You only need to clean particulates from room air (get an air purifier instead), your space is already dry, or you want a small portable bedroom dehumidifier rather than a whole-crawl-space unit.

Pick the PuroAir PuroAir 240 if

Renters and households who want quiet, affordable true-HEPA filtration for a bedroom or medium room, and value simplicity and price over chasing the highest measured clean-air delivery rate.

Skip if

You want independently-verified top-tier clean-air delivery or whole-home coverage. Then a Coway Airmega, Blueair, or IQAir is the better, pricier buy. And size up: do not trust the 1,000 sq ft figure for a truly large open space.

Go deeper

FULL REVIEW
Read the AlorAir Helios MP55 review →
FULL REVIEW
Read the PuroAir PuroAir 240 review →

Frequently asked

Which is better, the AlorAir Helios MP55 or the PuroAir 240?

They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.

How much do they cost?

AlorAir Helios MP55: $699.66. PuroAir 240: $199.99. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

AlorAir Helios MP55: Homeowners in humid climates, or anyone with a damp basement or crawl space, who wants to control humidity and mold at the source as part of a clean-air home. The built-in pump suits set-and-forget continuous drainage. PuroAir 240: Renters and households who want quiet, affordable true-HEPA filtration for a bedroom or medium room, and value simplicity and price over chasing the highest measured clean-air delivery rate.

Continue researching
Buyer guide
Best Water Filtration & Clean Air
Whole-house, off-grid, and air systems, by NSF certification.