On each product page it is the maker's high-speed figure for the blower in that model, shown with a rough decibel number, as in "5.4 Sones (~55 dB)". A specification block covers every model number in the series. The sound row reads "Sound Rating (High Speed)", and its tooltip says "Decibel (dB) values shown are approximate equivalents." The spec sheet repeats the figure with a decimal on the decibels: "5.4 Sones / 55.4 dB".
No current page or sheet gives a low-speed sone figure, and none names the duct or static pressure behind the rating. What the sheets do chart is each blower's airflow at 0.0, 0.1, 0.2 and 0.3 inch of static pressure; the B100 drops from 300 CFM to 273 at 0.1 inch.
The test is named only in the 2026 Liner Packet. There, each blower table's "Sones#" column carries the footnote "# Ratings in accordance with the Standard Test Code by the Energy Systems Laboratory of the Texas Engineering Experiment Station." That is not HVI's procedure, so every printed Vent-A-Hood figure here counts as the maker's.
The decibel numbers stay out. A sone does not turn into decibels by any fixed rule, as our sones and decibels explainer explains.
The B100 single Magic Lung rates lowest, at 5.4 sones and 300 CFM, and the 250 CFM K250 blower in the V-Line hoods highest, at 7.4.
| Blower | Airflow | Duct | High-speed sones |
|---|
| B100 single | 300 CFM | 6-inch | 5.4 |
| T200 island dual | 550 CFM | 8-inch | 6 |
| Two T200 island duals | 1,100 CFM | Two 8-inch | 6 |
| B200 dual with a B100 single | 900 CFM | 10-inch | 6.3 |
| T400 island cluster | 1,100 CFM | 12-inch | 6.4 |
| B200 dual | 600 CFM | 8-inch | 6.5 |
| Two B200 duals | 1,200 CFM | 12-inch | 6.6 |
| K250 V-Line | 250 CFM | 7-inch | 7.4 |
Two things stand out. The 900 CFM pairing is rated below the 600 CFM blower, and quadrupling the airflow from 300 to 1,200 CFM adds just 1.2 sones. The catalog goes further still, saying added blowers meet "any air flow requirement without increasing the noise level".
Pages also show an "Equivalent CFM" above the real one, 450 for the B100 and 1,800 at both 1,100 and 1,200 CFM, with the advice to "Use Equivalent CFM when comparing Vent-A-Hood products with other brands." This page uses plain CFM throughout.
What does HVI certify for Vent-A-Hood?
Six power units, each listed "with compatible hood" rather than as a named hood, in data generated November 5, 2026. Their top-speed ratings run from 5 to 12.5 sones, all taken at 0.1 inch.
| HVI listing | Duct | High | Medium | Low |
|---|
| B100 MSL | 6-inch | 5 sones at 279 CFM | | 0.9 sone at 121 CFM |
| T200 MSL | 8-inch | 6.5 sones at 460 CFM | 6.5 at 230 | 1 sone at 104 |
| B200 MSL | 8-inch | 8.5 sones at 541 CFM | 6.5 at 314 | 0.8 sone at 100 |
| M600 with M40SLD | 6-inch | 8.5 sones at 525 CFM | | 1.3 sones at 201 |
| K250HSS2 | 3-1/4 by 10-inch rectangular | 8.5 sones at 212 CFM | | 2.5 sones at 105 |
| M1200 | 10-inch | 12.5 sones at 763 CFM | | 2.5 sones at 309 |
On low speed the order changes. The B200 is lowest at 0.8 sone, then the B100 at 0.9 and the T200 at 1.
HVI marks the B100 listing "New". It has nothing for the 900 or 1,200 CFM Magic Lung pairings, the T400 cluster or the ductless ARS hoods, so those carry Vent-A-Hood's figure alone.
HVI rates the 600 CFM blower two sones higher
For the B200 dual blower, Vent-A-Hood prints 6.5 sones on high. HVI certifies 8.5 sones at 541 CFM on high and 6.5 sones at 314 CFM on its medium setting, so the maker's figure matches HVI's medium line. Neither source explains the gap. The sheet says high speed, and the Texas test code is a different procedure from HVI's. Because sones track loudness in a straight line, 8.5 sones sounds about 30% louder than 6.5.
On the other blowers both sources rate, the two sit closer: the B100 is 5.4 by Vent-A-Hood and 5 by HVI, and the T200 island dual 6 against 6.5.
The V-Line is harder to match. Its sheets give 7.4 sones through a 7-inch duct, while HVI's "K250HSS2 With Compatible Hood" is 8.5 sones on rectangular 3-1/4 by 10-inch ducting, and there is no way to be sure the two describe the same setup.
How loud are Vent-A-Hood's under-cabinet hoods?
5.4 sones on high with the 300 CFM blower, rising to 6.6 at 1,200 CFM, across the five Magic Lung under-cabinet series. The two V-Line under-cabinet series print 7.4 at 250 CFM.
The Magic Lung series are the PRH9 professional, XRH9 convex, CLH9 retro, SLH9 with emerald-cut edges and NPH9 with rounded edges. Each offers all four blower sizes, and one width can take several: a 30-inch PRH9 is the PRH9-130 at 300 CFM or the PRH9-230 at 600.
The V-Line PRH6 and SLH6 hoods are 6 inches tall and use the K250 blower, which the maintenance page pairs with standard electric and four-burner gas cooking. Their ductless ARS versions, the PRAH6 and SLAH6, appear below. For a like-for-like comparison with other makers, our under-cabinet ranking uses certified figures only.
Which Vent-A-Hood wall hood is quietest?
Of the 35 Magic Lung wall series, the 28 sold with the 300 CFM B100 blower rate lowest, at 5.4 sones on high. The PRH18-130 to PRH18-148 are one family.
The seven that skip the single blower split two ways. The XLH12 contemporary convex hood and the EPH18, NEPH18 and SEPH18 euro hoods come at 600 CFM only, 6.5 sones, and the EPTH18, NEPTH18 and SEPTH18 at 900 or 1,200 CFM, 6.3 or 6.6 sones. The three V-Line wall series, CWEH6, PDH7 and PDH14, print 7.4 sones at 250 CFM, and the four M-Line baffle wall series print no sone figure.
Chimney and wall hoods from other brands are ranked on certified figures in our wall-mount hood ranking.
How loud are Vent-A-Hood's island hoods?
The 12 island series offered with the 550 CFM T200 blower all print 6 sones on high. At 1,100 CFM the figure depends on the blower layout: 6 sones with two T200s, 6.4 with one T400 cluster.
Two contemporary series, the CIEH9 and CILH9, reach 1,100 CFM with two T200 dual blowers, each on a separate 8-inch duct, and keep the 6-sone rating. Six designer series and the EPITH18 and SEPITH18 euro hoods use the T400 cluster on a single 12-inch duct and print 6.4. The second duct buys a little air as well. At 0.1 inch the sheets give the two T200s 1,014 CFM and the T400 998.
HVI certifies the T200 at 6.5 sones and 460 CFM on high and lists neither 1,100 CFM layout. The V-Line CIEH6 island prints 7.4 sones at 250 CFM. Certified island hoods from other makers are in the quietest island range hoods.
Liner inserts follow the same blowers
The 300 CFM versions of the BH SLD standard-depth, BH PSLD professional-depth and TLH tilt-out liners rate lowest, at 5.4 sones on high.
The same liners print 6.5 at 600 CFM and 6.3 at 900, and the professional-depth BH4 sizes 6.6 at 1,200. The BH PSLB maximum-capacity liners come at 900 or 1,200 CFM only. Island liners follow the island hoods, with 6 sones for the 550 CFM TH SLE and 6.4 for the 1,100 CFM TH PSLE.
The V-Line KH SLD liner prints 7.4 sones, the ARS KAH SLD 2.5 with no airflow, and the M-Line M SLD and M PSLD nothing at all. The BH128SLD also appears among other makers' liners in the quietest range hood inserts.
Ductless ARS hoods say 2.5 sones with no airflow
Every ARS ductless hood page, across nine series from under-cabinet to island, prints "2.5 Sones (~48 dB)" on high, with CFM given as "N/A". Without an airflow figure, 2.5 sones cannot be set against a ducted rating, so it stays unranked. The 2026 Liner Packet also lists the KAH28SLD ARS liner at "Sones: n/a", which disagrees with the current page, and HVI lists no ARS hood.
ARS pairs "the centrifugal grease extraction of our Low-Profile blower" with carbon filtration, according to the technologies page, and the sheets name the blower "K250 ARS".
Every M-Line page shows "N/A Sones (~0 dB)", and the sheets chart airflow only. HVI does certify two M-Line blowers: the M600 with the M40SLD liner at 8.5 sones and 525 CFM on high and 1.3 sones at 201 CFM on low, and the M1200 at 12.5 sones and 763 CFM on high and 2.5 at 309 CFM on low. That M1200 figure is the highest HVI gives any Vent-A-Hood blower.
The M40SLD sheet charts the M600's four speeds at 240, 300, 500 and 625 CFM at 0.1 inch, and offers a WHM300 harness that "will disable blower speeds exceeding 300 CFM". M-Series products carry a one-year warranty, against five years for Magic Lung.
Vent-A-Hood says its remote blower moves the motor "to a roof, attic or exterior wall location to reduce noise". It prints no sone figure for one, though, and HVI lists none.
The Full Product Catalog describes 1,000 and 1,500 CFM remote models that use baffle filters "in lieu of the Magic Lung" and do not fit five styles, the CWSH3, PDH14, SLDH14, XLH12 and AH12. An archived October 2025 page for the RM1500 gives its width and airflow only. With no figure, a remote setup cannot join either ranking.
On November 7, 2026, the only current Vent-A-Hood hoods without a sone figure were the six M-Line baffle-filter series, 34 model numbers in all.
No hood on the site is marked discontinued, and every product page the Internet Archive has captured on the current site is still in the product sitemap. The older site, captured in November 2023, listed COH, ICXH30, ISFH18, ISFH30, PYH18 and PYH30 hoods that today's catalog does not. Whether they were dropped or renamed goes unsaid, so they are left out.
Are Vent-A-Hood range hoods quiet?
By the maker's figures, yes, and airflow barely moves them: 6.6 sones at 1,200 CFM against 5.4 at 300. HVI's ratings, the ones comparable across brands, spread much wider. HVI certifies the B100 single at 5 sones at 279 CFM, low for a ducted hood, but the B200 at 8.5 sones at 541 CFM and the M1200 at 12.5. By HVI's numbers a B200 on high is about 1.7 times as loud as a B100; by Vent-A-Hood's, about 1.2 times.
On low speed HVI puts the three Magic Lung blowers at 0.8 to 1 sone, where a hood spends most of a meal. Whether that is quiet enough for an open kitchen is a separate question from the high-speed figure.
Other makers print their ratings in other ways again, as our Broan range hood sones and Zephyr range hood sones pages show.
