SKU: 70999667974

Vent Axia 476311 Lo-Carbon PoziDry Pro Positive Input Ventilation (PIV) Unit with Heater

Sale price$323.68 Regular price$359.64
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Vent Axia 476311 Lo-Carbon PoziDry Pro Positive Input Ventilation (PIV) Unit with HeaterVent Axia 476311 Lo Carbon PoziDry Pro Positive Input Ventilation (PIV) with Heater The Vent Axia 476311 Lo Carbon PoziDry Pro with Heater is an advanced Positive Input Ventilation (PIV) system designed to help prevent and control condensation, damp and mould within residential properties. Ideal for refurbishment and social housing projects, the PoziDry Pro quietly introduces fresh, filtered air into the property from the loft space, helping to dilute

Vent-Axia 476311 Lo-Carbon PoziDry Pro Positive Input Ventilation (PIV) with Heater

The Vent-Axia 476311 Lo-Carbon PoziDry Pro™ with Heater is an advanced Positive Input Ventilation (PIV) system designed to help prevent and control condensation, damp and mould within residential properties.

Ideal for refurbishment and social housing projects, the PoziDry Pro™ quietly introduces fresh, filtered air into the property from the loft space, helping to dilute and replace stale, moisture-laden air. Featuring an integrated 500W heater, the unit helps temper incoming air to improve occupant comfort during colder months.

Key Features

  • Positive Input Ventilation system with integrated 500W heater
  • Designed to reduce condensation, damp and mould
  • SmartSense™ technology for simple setup and intelligent control
  • Ultra-low noise operation with low running costs
  • Fully adjustable airflow between 11 l/s and 49 l/s
  • Energy-saving Lo-Carbon DC motor technology
  • Includes ceiling diffuser, flexible ducting and G4 filters
  • Optional F7 filters available for PM2.5 filtration
  • Supplied with anti-vibration joist mounting legs and hanging kit
  • 5-year manufacturer warranty
  • IPX2 rated

How the PoziDry Pro™ Works

The loft-mounted unit draws fresh air from the roof space, filters it and gently distributes it into the home through a discreet ceiling diffuser. The continuous supply of filtered air helps reduce moisture levels while improving indoor air quality.

Using SmartSense™ technology, the system automatically adjusts airflow levels based on the property size and loft temperature conditions, ensuring efficient and comfortable ventilation throughout the year.

Intelligent Comfort Control

The PoziDry Pro™ automatically adjusts performance depending on loft temperatures:

  • Trickle Mode: Quiet continuous background ventilation
  • Energy Recovery Mode: Increases airflow when excess heat is detected in the loft
  • Stand-by Mode: Stops warm loft air entering the property during hot summer conditions

The integrated heater automatically activates when required to help take the chill off incoming air.

Flexible Installation

Designed for installer convenience, the PoziDry Pro™ includes anti-vibration mounting legs suitable for joist widths between 300mm and 650mm, along with a hanging kit for alternative mounting options.

The lightweight unit features an integrated carry handle for easier loft access and installation. The supplied ceiling diffuser uses a simple four-point fixing system for fast and repeatable fitting.

Advanced Filtration

Supplied with G4 filters as standard, the unit helps capture everyday airborne particles such as dust and pollen. Optional F7 filters are available to improve indoor air quality further by filtering PM2.5 pollutants including smoke, diesel particulates and spores.

Data Logging & Smart Controls

SmartSense™ technology provides intelligent monitoring and data logging, including:

  • Operating speed history
  • Runtime monitoring
  • Heater activity tracking
  • Energy usage recording

The interface can also be locked to prevent accidental adjustment of settings.

Product Specifications

  • Brand: Vent-Axia
  • Model: 476311
  • Product Range: Lo-Carbon PoziDry Pro™
  • Ventilation Type: Positive Input Ventilation (PIV)
  • Sector: Social Housing
  • Airflow Range: 11 l/s – 49 l/s
  • Heater: Integrated 500W heater
  • Motor Type: Lo-Carbon DC motor
  • Operating Temperature: -25°C to +40°C
  • IP Rating: IPX2
  • Warranty: 5 Years

Downloads

Download Data Sheet

Download Installation Guide

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70999667974

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4.1 ★★★★★
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J
Verified Purchase
Julia
Birmingham, US
★★★★★ 5
Very comfortable and safe chair
This executive desk chair is very convenient , for its 90° flip-up armrests can be easily pushed under the desk, perfect for home office. The rubber wheels roll smoothly and quietly on my carpet. It supports up to 275 pounds so it is safe to me . The height-adjustable back with 360° swivel makes me move freely . The curved, padded backrest provides relieve back pressure , also it is very easy to set up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
L
Verified Purchase
Lory Johnson
Cuba, US
★★★★★ 4
Recommend it for all.
Color: Grey, Color: Grey
Very nice chair. One warning…it went together very easily except for the last screw!!! I finally gave up. A neighbor came over and gave up. My daughter came. Over and after much groaning and moaning got that last screw in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
D
Verified Purchase
Daniel Ivan
Dallas, US
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty. Very easy to put together and it feels very firm and stable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
C
Verified Purchase
Carol Ann Everitt
Natrona Heights, US
★★★★★ 5
Thick seat cushion
Color: Grey
This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
B
Verified Purchase
Brittany
Lake Worth, US
★★★★★ 3
Meh
Color: Black
It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2026

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