Tech Drive TD-BF-10 Bathroom Exhaust Fan, 110 CFM, 1.5 Sones

Tech Drive TD-BF-10 is a ceiling-mount bathroom exhaust fan listed at 110 cfm and 1.5 sones, with a 4-inch duct and a low-profile grille. Its listed housing dimensions and retrofit installation claim make opening size and duct compatibility important checks before purchase.

At a glance

The listing rates airflow at 110 cfm and sound at 1.5 sones.
A 4-inch duct is specified. The stated housing size is 9in x 8.5in x 6in.
The listing describes room-side installation for existing construction without attic access and also describes mounting options for new construction.
The manufacturer says it is suitable over a bathtub or shower when installed on a GFCI-protected branch circuit.

Price

$53.99Save 16%

Reference price: ~~$63.99~~

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

The listed 110 cfm airflow and 4-inch duct size offer a clear starting point for matching a bathroom ventilation replacement.
The product description says existing-fan replacement can be done from the room side without attic access.
A low-profile grille and stated 1.5-sone rating may suit buyers prioritizing a compact appearance and moderate listed sound level.

Technical specifications

25 specifications

Identity
Brand	Tech Drive
Model	TD-BF-10
Fan design	Exhaust Fan
Color	White

Airflow and operation
Airflow capacity	110 cfm
Noise level	1.5 sones
Speed	900 rpm
Number of blades	4
Wattage	25 watts
Number of power levels	1

Power and controls
Power configuration	AC
Voltage	120 volts
Control methods listed	Touch
Switch type	Wall Switch
Main power connector	NEMA 5-15

Dimensions and installation
Mounting type	Ceiling Mount
Dimensions	8.5"D x 9"W x 6"H
Weight	6 pounds
Duct size	4in duct
Ceiling mounting opening	9.25in x 8.9in.
Installation type	existing construction

Materials and features
Materials	Metal, Plastic
Blade material	Plastic
Special features	Easy Installation, Energy Efficient, Low Profile, Quiet Operation
Specification claims	Energy Star, HVI, UL

What to know before buying

The listing claims an operating life of at least 25000 hours and Energy Star, UL and HVI credentials. These are manufacturer claims, not independently verified here. For bathtub or shower use, the listing specifies a GFCI-protected branch circuit.

Listing details to confirm

The listing is inconsistent about controls, naming Touch as the control method but also listing a wall switch, and about speeds, stating both four speeds and one power level. It also labels the product as existing-construction installation while describing new-construction mounting, lists Wall Mount as an included component despite ceiling-mount descriptions, and does not clarify whether that means a bracket. Verify the switch/control arrangement, installation fit and included mounting hardware for the selected listing. The stated 9.25in x 8.9in ceiling opening differs from the listed 8.5"D x 9"W x 6"H product dimensions. Confirm the required cutout and duct alignment against the existing opening before ordering.

What’s in the box

Included

Wall Mount

Who is it for?

A good fit for

Buyers replacing a bathroom exhaust fan who can match a 4-inch duct and the required ceiling opening.
Installations where room-side retrofit access without reaching the attic is useful, subject to checking the existing housing and cutout.
Buyers seeking a listed 110 cfm fan for bathroom or other indoor utility-room ventilation.

Less suited to

Buyers who need confirmed multi-speed control or a specific switch arrangement without further clarification.
Installations where the existing opening or duct does not match the dimensions confirmed for this fan.

Tech Drive TD-BF-10 Bathroom Exhaust Fan, 110 CFM, 1.5 Sones · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 311 ratings

5 stars71%71%
4 stars16%16%
3 stars6%6%
2 stars2%2%
1 star5%5%

Customer feedback describes good performance, easy installation and build quality, including a report of improvement over an older fan. Noise and value impressions are mixed. For buyers weighing the listed 110 cfm airflow and 1.5-sones rating, the reports suggest installation and performance have been appreciated, but perceived sound and value are not uniform.

Positive themes

Customers report good performance and easy installation, with build quality also appreciated.

Mixed feedback

Customer impressions of noise vary, from not especially quiet to not very loud.
Value for money receives mixed comments.

Frequently asked questions

What airflow and sound level are listed for this fan?

The listing gives 110 cfm airflow and a noise level of 1.5 sones. These are listing claims rather than independently verified measurements.

What duct and ceiling opening does it need?

A 4-inch duct is stated. The listing gives a ceiling opening of 9.25in x 8.9in., while its product dimensions are 8.5"D x 9"W x 6"H. Confirm the cutout requirement for your installation.

Can it be installed without attic access?

The product description says replacement in existing construction can be done entirely from the room-ceiling side without attic access. Confirm compatibility with the current opening and mounting arrangement.

Are the controls and included mounting parts clear?

No. The details list Touch control and a wall switch, while speed information also differs between four speeds and one power level. The included-components field says Wall Mount, so confirm the intended control and hardware with the selected listing.