Holmes Dual 8" Blade Twin Window Fan with Manual Controls, 3 Speed Settings, White

By Holmes

9.1Excellent matchFeature and use-case score

A basic manual-dial twin fan that Holmes itself never publishes performance numbers for, though independent lab testing of this line did put real figures behind it.

Twin 8-inch blades with independent, electronically reversible, water-resistant motors
3 manual speed settings and a manual comfort-control thermostat dial
Accordion extender screen plus a 5-inch removable panel for larger window openings

See Price at the store →Price, delivery, and configuration can change at the retailer.

ByTopFiveFind Research Desk

How this was made: AI-assisted research and drafting organize the evidence. Exact product identity, source claims, owner-feedback patterns, conflicts, and publication checks are documented before indexing. No hands-on or human-expert testing is claimed unless a page explicitly shows that evidence. Read the full methodology.

Best fitBest Value, No-Frills Pick

CategoryVacuum Sealers

BrandHolmes

Catalog score9.1 / 10

Product overview

Holmes Dual 8-Inch Blade Window Fan: What to Know

This Holmes fan uses two 8-inch blades, each with its own independently reversible, water-resistant motor, controlled through 3 manual speed settings and a manual comfort-control thermostat dial rather than any digital display. It's built for double-hung and slider windows with a minimum opening of about 25 inches, extending to roughly 35 inches wide using the included accordion extender screen and a 5-inch removable panel, and it carries a 3-year limited warranty.

One thing worth flagging directly: Holmes does not publish CFM or decibel specifications for this fan anywhere in its own materials or on retailer listings checked, which several independent reviewers and even buyer Q&A threads have specifically pointed out as a gap. The only concrete third-party numbers found came from TechGearLab's independent lab testing, which measured a fan it labeled the "Holmes Manual Dual 8-inch Blade Twin Window Fan" at 592.1 CFM and 54.2 dB. That gives outside buyers a real data point to compare against other fans in this guide, but it's a third-party measurement rather than an official Holmes spec, so it should be read as a reasonable estimate rather than a guarantee.

Key Listed Features

Twin 8-inch blades with independent, electronically reversible, water-resistant motors

3 manual speed settings and a manual comfort-control thermostat dial

Accordion extender screen plus a 5-inch removable panel for larger window openings

3-year limited warranty

Good fit for

Minimum window opening of about 25 inches wide, expandable to roughly 35 inches with the included extender panel and screen
Designed for double-hung and horizontal slider windows, not casement or crank-style windows
Backed by a 3-year limited warranty per Holmes and retailer listings

Check before buying

Holmes also sells a nearly identical-looking "One Touch LED Thermostat" version under model number HAWF2043; check the listing title carefully so you get the manual-dial version covered here if that's what you want
No official CFM or dB numbers exist from Holmes itself; the only published figures come from an independent lab test of what that outlet specifically called the manual version
Water-resistant motors are rated for light rain exposure, not full weatherproofing; check the manual before leaving it running through sustained heavy rain

Research sources

Buying questions

Quick Answers

Does this Holmes fan have a digital display?

No. This manual-controls version uses physical dial and switch controls with a manual thermostat; Holmes sells a separate LED one-touch thermostat version if you want a digital display instead.

Will it fit a 22-inch-wide window?

Not on its own. Holmes lists a minimum window opening of about 25 inches, so a 22-inch opening is narrower than its supported range.