---
product_id: 541750886
title: "PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack"
brand: "lancaster home products"
price: "€ 98.96"
currency: EUR
in_stock: true
reviews_count: 13
category: "Lancaster Home Products"
url: https://www.desertcart.gr/products/541750886-prevent-it-soffit-vents-4-inch-only-design-that-prevents
store_origin: GR
region: Greece
---

# 95%+ moist air displacement Easy install with included screws Built-in damper blocks pests & drafts PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack

**Brand:** lancaster home products
**Price:** € 98.96
**Availability:** ✅ In Stock

## Summary

> 💨 Keep your home fresh, dry, and pest-free with the vent that actually works!

## Quick Answers

- **What is this?** PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack by lancaster home products
- **How much does it cost?** € 98.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/541750886-prevent-it-soffit-vents-4-inch-only-design-that-prevents)

## Best For

- lancaster home products enthusiasts

## Why This Product

- Trusted lancaster home products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pest & Draft Defense System:** Integrated damper flap seals out pests and unwanted drafts, creating a closed, energy-efficient ventilation system.
- • **Durable Weather-Resistant Resin:** Crafted from high-quality plastic built to withstand the elements, ensuring long-lasting performance and peace of mind.
- • **Patented Moisture-Deflecting Design:** Redirects 95%+ of moist bathroom air away from soffit to protect your home’s structure and indoor air quality.
- • **Effortless Installation & Maintenance:** Comes with screws and a removable screen for quick setup and easy cleaning—no hassle, no fuss.
- • **Optimized for Bathroom Fans up to 110 CFM:** Perfectly engineered to maximize airflow without noise or restriction, keeping your bathroom fresh and dry.

## Overview

The PreVent-It 4 Inch Soffit Vent features a patented design that directs over 95% of moist bathroom air away from your home’s soffit, preventing moisture damage, reducing HVAC costs, and improving indoor air quality. Made from durable, weather-resistant resin and including all installation hardware, it’s easy to install and maintain. Its built-in damper flap blocks pests and drafts, making it the smart, energy-efficient choice for bathroom exhaust ventilation up to 110 CFM. Proudly made in the USA.

## Description

PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack - desertcart.com

Review: A good choice. - A well made and sturdy vent. Build in baffle prevents drafts from entering. Looks good and functions perfectly. Very easy to install. The unit is a little large but I had the room for it. Ended up looking great. Very pleased.
Review: Glad I found this! - Works great to push the air away from soffit. Matches my black soffit. easy to install. I have a 2 ft overhang, so this works and if ice icicles do form, there is room so it doesn't block the vent

## Features

- Patented design and only soffit vent built to direct moist bathroom air away from the soffit, not under it. This prevents several issues, including water and roof damage, increased moisture resulting in higher heating and air conditioning costs, and indoor air quality issues that can impact health.
- Scientifically proven to displace the most amount of exhausted air away from the home (95%+ of moist air). Don't put your family's wellness or the health of your home at risk by using a less effective, cheap soffit vent.
- Damper/flap provides a closed system that prevents pests and air from entering home. The small front grill openings help increase air speed to push moisture over the soffit edge. Note: Meant for bath fans up to 110 CFM. Higher CFM fans may experience louder fan noise and restricted air flow.
- Easy to install; easy to clean via removable screen; fits a 4-inch vent hose (4 screws included).
- Durable resin plastic that's weather resistant; Made in the USA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C94LSV37 |
| Air Flow Capacity | 110 Cubic Feet Per Minute |
| Best Sellers Rank | #21,555 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Soffit Vents |
| Blade Material | Plastic |
| Brand Name | Lancaster Home Products |
| Collection Name | Bathroom,Home |
| Color | White |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.6 4.6 out of 5 stars (295) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | 4 Screws (#8-15 x 1"), Soffit Vent |
| Indoor Outdoor Usage | Outdoor |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 11.25"D x 7.85"W x 3.75"H |
| Item Type Name | Soffit Vent |
| Item Weight | 14.56 ounces |
| Main Power Connector Type | Standard Household Plug (e.g., Type A, Type B) |
| Manufacturer | Novelty Manufacturing Co. |
| Material | Plastic |
| Model Name | PreVent-It Bathroom Soffit Vent |
| Model Number | 42502.01 |
| Mounting Type | Roof Mount |
| Number of Power Levels | 1 |
| Number of Speeds | 10 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting Bathroom Fan, Ventilating |
| Room Type | Bathroom |
| Special Features | Built-in damper/flap provides a closed system, Easy to install & screws included, High-quality, durable resin plastic that's weather resistant, Made in USA, Patented design better ventilates bathroom exhaust |
| Standby Power Shutoff | High Efficiency |
| Style | 4" Soffit Vent |
| Switch Type | Push Button |
| UPC | 026978425027 |
| Unit Count | 1.00 Count |

## Product Details

- **Brand:** Lancaster Home Products
- **Color:** White
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Roof Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 11.25"D x 7.85"W x 3.75"H
- **Recommended Uses For Product:** Exhausting Bathroom Fan, Ventilating
- **Room Type:** Bathroom
- **Style:** 4" Soffit Vent

## Images

![PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack - Image 1](https://m.media-amazon.com/images/I/41v6hub2cSL.jpg)

## Available Options

This product comes in different **Color, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good choice.
*by T***. on January 30, 2026*

A well made and sturdy vent. Build in baffle prevents drafts from entering. Looks good and functions perfectly. Very easy to install. The unit is a little large but I had the room for it. Ended up looking great. Very pleased.

### ⭐⭐⭐⭐⭐ Glad I found this!
*by J***. on January 25, 2026*

Works great to push the air away from soffit. Matches my black soffit. easy to install. I have a 2 ft overhang, so this works and if ice icicles do form, there is room so it doesn't block the vent

### ⭐⭐⭐⭐⭐ Perfect solution!
*by S***. on April 13, 2024*

Well made and great design to stop replacing cheap products often. The vent design is genius, has a damper and small vent holes to keep out bugs. Made of durable plastic and easy to install even 19’ in the air above second floor. Install two a couple feet apart to replace rusted metal “rust proof” after less than two years. Look no further for the best soffit vent on the market.

## Frequently Bought Together

- PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/541750886-prevent-it-soffit-vents-4-inch-only-design-that-prevents](https://www.desertcart.gr/products/541750886-prevent-it-soffit-vents-4-inch-only-design-that-prevents)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-06-08*