---
product_id: 548392874
title: "Very Quiet 80 CFM, 1.5 Sone No Attic Access Needed Installation Bathroom Ventilation and Exhaust Fan with Humidity Sensor"
brand: "tech drive"
price: "S/.1147"
currency: PEN
in_stock: true
reviews_count: 5
category: "Tech Drive"
url: https://www.desertcart.pe/products/548392874-very-quiet-80-cfm-1-5-sone-no-attic-access
store_origin: PE
region: Peru
---

# 80 CFM powerful airflow 1.5 Sones ultra-quiet No attic access install Very Quiet 80 CFM, 1.5 Sone No Attic Access Needed Installation Bathroom Ventilation and Exhaust Fan with Humidity Sensor

**Brand:** tech drive
**Price:** S/.1147
**Availability:** ✅ In Stock

## Summary

> 💨 Quiet power meets smart design — breathe easy, install easy!

## Quick Answers

- **What is this?** Very Quiet 80 CFM, 1.5 Sone No Attic Access Needed Installation Bathroom Ventilation and Exhaust Fan with Humidity Sensor by tech drive
- **How much does it cost?** S/.1147 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/548392874-very-quiet-80-cfm-1-5-sone-no-attic-access)

## Best For

- tech drive enthusiasts

## Why This Product

- Trusted tech drive brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Certified Reliability:** Energy Star qualified and UL/HVI certified for guaranteed performance and safety.
- • **Optimal Airflow Power:** Delivers 80 CFM to efficiently ventilate bathrooms up to 85 sq. ft., preventing moisture buildup.
- • **Smart Humidity Sensor:** Automatically activates when humidity exceeds 60%, ensuring fresh air without wasting energy.
- • **Whisper-Quiet Comfort:** Operates at just 1.5 sones, keeping your bathroom peaceful and serene.
- • **Effortless Installation:** No attic access needed—install entirely from the room side, saving time and hassle.

## Overview

The Tech Drive Very Quiet 80 CFM bathroom exhaust fan combines whisper-quiet operation at 1.5 sones with strong airflow suitable for bathrooms up to 85 sq. ft. Its innovative no-attic-access installation allows for quick setup entirely from the room side. Featuring a smart humidity sensor that automatically activates the fan above 60% humidity, this Energy Star qualified and UL/HVI certified fan ensures efficient, reliable ventilation while maintaining a peaceful bathroom environment.

## Description

Tech Drive Very Quiet 80 CFM, 1.5 Sone No Attic Access Needed Installation Bathroom Ventilation and Exhaust Fan with Humidity Sensor : desertcart.ae: Tools & Home Improvement

Review: Very quiet - This fan is very quiet, installation is easy, humidity sensor is a great feature
Review: Muy bien - Funciona perfectamente, se instaló en un cuarto de máquinas de alberca.

## Features

- Very quiet bathroom fan (1.5 sones) and Strong air movement (80CFM) for bathroom up to 85 Sq. Ft
- Easy-to-Install: No cut housing with no attic access installation and replaces most small bathroom standard fans using existing opening. it can be done entirely from the room-ceiling side – no attic access needed installation.Please note that the housing height of this fan is 6 inches. If you replace an old fan with a housing height of 4 inches, make sure that the ceiling is installed deep enough before replacing.
- Two operation options: 1. Manual mode-The RED LED indicator lights, the fan will run continuously in this mode. 2. Humidity sensing mode- The LED indicator light will be green. In this mode the fan will automatically turn on when the humidity level in the room is above 60%
- Housing size: 7.5in x 7.25in x 6in with 4in duct. ceiling mounting Opening: 7.6in x 7.3in. Efficient and quiet,excellent motor perfomance, working at least 25000 hours
- Energy Star qualified, UL and HVI certified for performance assurance.Acceptable for use over a bathtub or shower when installed in a GFCI-protected branch circuit.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C22TQFCS |
| Air Flow Capacity | 80 Cubic Feet Per Minute |
| Blade Material | Plastic |
| Brand | Tech Drive |
| Brand Name | Tech Drive |
| Collection Name | Bathroom Fans |
| Color | white |
| Colour | white |
| Control Method | Touch |
| Controller Type | Wall Switch |
| Customer Reviews | 4.3 out of 5 stars 76 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted/Powder Coated (White) |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Without access to the attic |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 19.1D x 18.4W x 15.2H centimeters |
| Item Weight | 2.27 kg |
| Main Power Connector Type | C13 or C14 |
| Manufacturer | Tech Drive |
| Material | Metal |
| Model Name | bathroom fan with Humidity sensing |
| Model Number | TD-BF-04H |
| Motor Type | DC Motor |
| Mounting Type | Ceiling Mount |
| Noise Level | 1.5 Sones |
| Number of Packs | 1 |
| Number of Power Levels | 2 |
| Part Number | TD-BF-04H |
| Power Source | ac |
| Power source | ac |
| Product dimensions | 19.1D x 18.4W x 15.2H centimeters |
| Recommended Uses For Product | Ventilating |
| Room Type | Bathroom |
| Size | 80CFM with Humidity Sensor |
| Special Features | Humidity sensor |
| Specification Met | HVI, UL |
| Speed | 500 RPM |
| Style | Modern |
| Switch Type | Push Button |
| UPC | 798250854343 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts (AC) |
| Wattage | 20 watts |

## Product Details

- **Brand:** Tech Drive
- **Colour:** white
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Ceiling Mount
- **Power source:** ac
- **Product dimensions:** 19.1D x 18.4W x 15.2H centimeters
- **Recommended uses for product:** Ventilating
- **Room type:** Bathroom
- **Special features:** Humidity sensor
- **Style:** Modern

## Images

![Very Quiet 80 CFM, 1.5 Sone No Attic Access Needed Installation Bathroom Ventilation and Exhaust Fan with Humidity Sensor - Image 1](https://m.media-amazon.com/images/I/61xQT1PmkDL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very quiet
*by B***N on 29 October 2024*

This fan is very quiet, installation is easy, humidity sensor is a great feature

### ⭐⭐⭐⭐⭐ Muy bien
*by C***N on 12 November 2024*

Funciona perfectamente, se instaló en un cuarto de máquinas de alberca.

### ⭐⭐⭐⭐⭐ Good quiet fan. You can DIY it from below, but there are always challenges.
*by P***E on 15 June 2026*

I was lured by the low sone rating, the humidity sensor, and "No Attic Access Needed." It is very quiet, and I can verify that you can install it from below, i.e., without attic access. The humidity setting seems to work. I have now installed four of these. There is little on this fan to accommodate installing it from below as when replacing an existing fan. Just a few holes in the metal box. I admit to having installed the fan without reading the instructions first; I do that. As it turned out, I fumbled through figuring out what the instructions would have told me. I did install the fan as intended, but I'm handy enough. Nevertheless, this was a challenging project. I would have only been a little faster if I'd read the instructions. So... If installed from above, it is intended to be held in place by "ears" that stick out from the body of the box; you can see one in the picture. There is no way to install the fan from below using those ears for support. You can't get there. So to attach the fan from below, you'll need to remove the fan mechanism from the housing so you can attach the housing. Here's what I did. I removed the existing fan, which was held in place by the same kind of "ears" as mentioned above. But you likely can't reach them easily. I had to pry the ears loose from below with a pry bar. Then I was able to remove that existing fan housing from below. Noting that there was no way to use the "ears" on the new fan, I cut them off. That's not necessary, but they won't help you putting the fan through the hole in your ceiling. I removed the fan mechanism from the housing box by removing two brackets, brackets that both hold the fan's mechanism in place and provide slots for the grille to attach to. Fortunately, there are three screw holes in the back of the box on the side where it attaches to the joist. But before attaching your box up in the ceiling, there are two things you need to do. First, you connect your wiring, and for that you'll need some sort of stress-relief collar for your house wire to go through. It shouldn't just go through a hole in the sheet metal; vibration will eventually cut through the insulation. So, get a stress-relief gadget (there are several kinds) and hook up. Awkwardly, you'll have to do this up on your ladder with no other support for the metal box. Your stress-relief gadget might be able to hold the box up once you clamp it on the wire, and it will help that it will be hanging there. Next, you'll have to hook up the exhaust pipe, and that can be a trick. The exhaust of your new fan is 4", but my exhaust pipe was 3", so I needed a reducer, and the reducer I bought wouldn't fit on either end. I had to cut it, force it together, and duct-tape it in place. Before connecting the exhaust pipe, you'll need to push the fan's metal box up into the ceiling. But I was working in an area with insulation falling out of it, and my exhaust pipe was not really long enough. If I let go of it, it retreated into the insulation. It was a mess; I could have used a 3" coupler to add a little length. After getting the wiring and the piping all hooked up and hopefully stable, you then put three screws through the holes in the back of the box. That's not easy; it's not a big box. I used a small ratchet screwdriver, straining to get the screws in far enough that the heads wouldn't prevent the fan mechanism from sliding into place. I finally managed to push the fan mech up into the box, where I secured it with the brackets I mentioned earlier. That was harder than I expected. Wear gloves; sheet metal can cut your hands to pieces. After all that, I was gratified that the fan worked and it IS quiet! Nice! And I didn't damage the sheetrock so much that the grille couldn't cover it. Done! I didn't expect this to be easy; I've replaced several fans, and it never is easy, probably a 2-trip job (trips to the hardware store). Attic access obviously isn't required, but maybe it could have flanges and ears that you can easily use from below. As I say, the instructions describe how to attach the box, but I figured that out. I'm an engineer, after all, and we're notorious for not reading instructions. ;) Update: I bought another of these to continue replacing the OEM fans in the bathrooms in this house. There's always a learning curve, and the first is the most difficult, especially if you don't read the instructions (ahem). The second one went up in a matter of hours. This one, though, didn't have solid wood backing, only the bottom rail of an i-beam joist. Yuck. So, none of the three pre-drilled holes in the back of the box could do me any good, and I had to drill three holes near the bottom of the box for attaching. No fault of this fan, but that arrangement didn't provide enough support. On subsequent installations with the I-beam joist, I installed a board on the I-beam to give my fan more support. Someday I may revisit the one without enough support, but I'm tired of fiddling with them for now. One more thang: I chuckle at instructions that underplay how difficult a small step is to execute. In this case the final step (snapping on the grille) can be exasperating. Instructions say where to feed the wire springs through, but it can be a struggle to get the springs to expand into place they need to go to flatten the grille out on the ceiling. All I could figure to do was to be persistent. Be careful not to let one of the wires get into the fan; it will make an awful noise.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-11-05*